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RRB Group D 2025-26 5 August 2026 Shift 2 GK Questions – with answers & solutions

All 43 GK / GS questions asked in RRB Group D 2025-26 on 5 August 2026 Shift 2, with correct answers and short solutions, subject-wise: Current Affairs, Chemistry, Physics, Biology.

📚 43 questions🗓️ 5 August 2026⏰ Shift 2
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Subjects: Current Affairs (20) · Chemistry (9) · Physics (9) · Biology (5)

Current Affairs (20)

Sports - Current · Records and achievements

Q1. Which Indian Institute of Technology (IIT) introduced Omega Ball, in April 2026, an innovative three-team football format, marking its debut in India?

  1. (a) IIT Madras
  2. (b) IIT Delhi
  3. (c) IIT Kharagpur
  4. (d) IIT Mumbai
Answer & solution

Answer: (a) IIT Madras

Answer: Option 1 — IIT Madras
IIT Madrasintroduced 'Omega Ball', a three-team football format (April 2026) → Option 1. *(Verify against the official key.)*
National Affairs and Government Initiatives · National events and launches

Q2. On 30th January 2026, the Ministry of Minority Affairs launched which new modules on the UMEED Central Portal?

  1. (a) Survey Module and Waqf Property Lease Module
  2. (b) Audit Module and Registration Module
  3. (c) Land Record Module and Donation Module
  4. (d) Tax Module and Compliance Module
Answer & solution

Answer: (a) Survey Module and Waqf Property Lease Module

Answer: Option 1 — Survey Module and Waqf Property Lease Module
The Ministry of Minority Affairs added these modules to the UMEED portal → Option 1. *(Verify against the official key.)*
Awards and Honours - Current · Sports and film awards - current

Q3. Which football club was honored as the Laureus World Team of the Year in 2026 after capturing its historic first-ever UEFA Champions League title?

  1. (a) Paris Saint-Germain
  2. (b) Manchester City
  3. (c) Bayern Munich
  4. (d) Real Madrid
Answer & solution

Answer: (a) Paris Saint-Germain

Answer: Option 1 — Paris Saint-Germain
PSGwon its first UEFA Champions League title and was named Laureus World Team of the Year 2026 → Option 1. *(Verify against the official key.)*
Economy, Banking and Business · GDP and growth forecasts

Q4. In FY2026, which expenditure category — growing at 7.0% — signalled a significant rise in consumer demand?

  1. (a) Defence Expenditure
  2. (b) Export Expenditure
  3. (c) Government Capital Expenditure
  4. (d) Private Final Consumption Expenditure
Answer & solution

Answer: (d) Private Final Consumption Expenditure

Answer: Option 4 — Private Final Consumption Expenditure
RisingPrivate Final Consumption Expenditure (PFCE)at 7.0% signals stronger consumer demand → Option 4.
*(Translated from Bengali; solved in English.)*
Awards and Honours - Current · National awards - current

Q5. Which actor was posthumously conferred with Padma Vibhushan award by government of India in 2026?

  1. (a) Dharmendra Singh Deol
  2. (b) Rishi Kapoor
  3. (c) Manoj Kumar
  4. (d) Raj Kumar
Answer & solution

Answer: (a) Dharmendra Singh Deol

Answer: Option 1 — Dharmendra Singh Deol
Veteran actorDharmendrawas posthumously conferred the Padma Vibhushan (2026) → Option 1. *(Verify against the official key.)*
Awards and Honours - Current · Sports and film awards - current

Q6. Who was named the Laureus World Sportswoman of the Year at the 2026 Laureus World Sports Awards?

  1. (a) Sydney McLaughlin-Levrone
  2. (b) Katie Ledecky
  3. (c) Aryna Sabalenka
  4. (d) Aitana Bonmatí
Answer & solution

Answer: (c) Aryna Sabalenka

Answer: Option 3 — Aryna Sabalenka
Aryna Sabalenkawas Laureus World Sportswoman of the Year 2026 → Option 3. *(Verify against the official key.)*
Environment and Climate - Current · New protected areas and Ramsar sites

Q7. According to the Ministry of Environment, Forest and Climate Change notification issued during 2026, which of the following wildlife sanctuaries was declared an Eco-Sensitive Zone?

  1. (a) Sultanpur Wildlife Sanctuary
  2. (b) Pobitora Wildlife Sanctuary
  3. (c) Kumbhalgarh Wildlife Sanctuary
  4. (d) Dandeli Wildlife Sanctuary
Answer & solution

Answer: (c) Kumbhalgarh Wildlife Sanctuary

Answer: Option 3 — Kumbhalgarh Wildlife Sanctuary
Kumbhalgarh WLS(Rajasthan) was declared an Eco-Sensitive Zone (2026) → Option 3. *(Verify against the official key.)*
Defence and Security - Current · Military exercises - current

Q8. The 14ᵗʰ edition of Joint Military Exercise EKUVERIN, conducted from 2–15 December 2025 at Thiruvananthapuram, involved the Indian Army contingent from the Garhwal Rifles and which of the following armed forces personnel?

  1. (a) The Maldives National Defence Force (MNDF)
  2. (b) The Sri Lanka Army Special Forces Command
  3. (c) The Seychelles People’s Defence Forces
  4. (d) The Mauritius Police Special Mobile Force
Answer & solution

Answer: (a) The Maldives National Defence Force (MNDF)

Answer: Option 1 — Maldives National Defence Force
Exercise EKUVERIN is a joint India–Maldivesmilitary exercise → Option 1.
National Affairs and Government Initiatives · New government schemes and missions

Q9. What is the primary objective of the National Project approved by the MoPR and NDMA in December 2025 (unfolding in 2026) with an outlay of over Rs 500 crore?

  1. (a) Constructing underground tsunami shelters in the Andaman Islands
  2. (b) Purchasing fire-fighting drones for metro cities
  3. (c) Building a new National Cyclone Warning Centre
  4. (d) Strengthening community-based disaster risk reduction in Panchayati Raj institutions
Answer & solution

Answer: (d) Strengthening community-based disaster risk reduction in Panchayati Raj institutions

Answer: Option 4 — Strengthening community-based disaster risk reduction in Panchayati Raj institutions
The MoPR–NDMA project (₹500 crore+) targetscommunity-based DRR through Panchayats→ Option 4. *(Verify against the official key.)*
Defence and Security - Current · Defence acquisitions and indigenous systems

Q10. In February 2026, which ministry released the draft of the Defence Acquisition Procedure (DAP) 2026?

  1. (a) Ministry of Finance
  2. (b) Ministry of External Affairs
  3. (c) Ministry of Defence
  4. (d) Ministry of Heavy Industries
Answer & solution

Answer: (c) Ministry of Defence

Answer: Option 3 — Ministry of Defence
TheMinistry of Defencereleased the draft DAP 2026 → Option 3.
International Affairs and Summits · Summits and conferences

Q11. Which country participated as a partner country in Gulfood 2026, the world’s largest annual food and beverage sourcing event being held in Dubai from January 26-30, 2026?

  1. (a) India
  2. (b) Brazil
  3. (c) Japan
  4. (d) China
Answer & solution

Answer: (a) India

Answer: Option 1 — India
Indiawas the partner country at Gulfood 2026, Dubai → Option 1. *(Verify against the official key.)*
Books, Obituaries and Days - Current · Days and themes - current year

Q12. The national-level celebration of National Science Day, organized by the Department of Science and Technology at Vigyan Bhawan in New Delhi during 2026, was conducted under which official theme?

  1. (a) Women in Science: Catalysing Viksit Bharat
  2. (b) Indigenous Technologies for Viksit Bharat
  3. (c) The Role of Science in National Development
  4. (d) Integrated Approach in S&T for Sustainable Future
Answer & solution

Answer: (a) Women in Science: Catalysing Viksit Bharat

Answer: Option 1 — Women in Science: Catalysing Viksit Bharat
This was the National Science Day 2026 theme → Option 1. *(Verify against the official key.)*
Reports, Indices and Rankings · Global indices and India's rank

Q13. According to Stanford University's 2025 Global AI Vibrancy Tool report, what was India's global ranking in Artificial Intelligence competitiveness?

  1. (a) Fourth position
  2. (b) Fifth position
  3. (c) Seventh position
  4. (d) Third position
Answer & solution

Answer: (d) Third position

Answer: Option 4 — Third position
India ranked3rdin Stanford's 2025 Global AI Vibrancy Tool → Option 4. *(Verify against the official key.)*
National Affairs and Government Initiatives · National events and launches

Q14. In 2026, which of the following All India Institute of Medical Sciences (AIIMS) became the first AIIMS in India to host a Gen Z Post Office initiative?

  1. (a) AIIMS New Delhi
  2. (b) AIIMS Jammu
  3. (c) AIIMS Nagpur
  4. (d) AIIMS Patna
Answer & solution

Answer: (b) AIIMS Jammu

Answer: Option 2 — AIIMS Jammu
AIIMS Jammuhosted the first Gen Z Post Office initiative (2026) → Option 2. *(Verify against the official key.)*
State News · State schemes and events

Q15. The "Nirbhaya Nisha" project, operationalised on March 8, 2026, to ensure safe and independent night travel for women, is an initiative of which Indian state's police force?

  1. (a) Andhra Pradesh Police
  2. (b) Tamil Nadu Police
  3. (c) Kerala Police
  4. (d) Karnataka Police
Answer & solution

Answer: (c) Kerala Police

Answer: Option 3 — Kerala Police
The 'Nirbhaya Nisha' project (safe night travel for women) is aKerala Policeinitiative → Option 3. *(Verify against the official key.)*
Sports - Current · Tournaments and winners

Q16. Who won the gold medal in the men’s 60m event at the National Indoor Athletics Championships 2026?

  1. (a) Reegan Ganesh
  2. (b) Gurindervir Singh
  3. (c) Mohammed Afsal
  4. (d) Animesh Kujur
Answer & solution

Answer: (b) Gurindervir Singh

Answer: Option 2 — Gurindervir Singh
Gurindervir Singhwon the men's 60 m gold at the National Indoor Athletics 2026 → Option 2. *(Verify against the official key.)*

Q17. The Supreme Court’s observation that access to trauma care forms an inseparable part of the Right to Life was made under which Article of the Constitution of India?

  1. (a) Article 32
  2. (b) Article 25
  3. (c) Article 21
  4. (d) Article 19
Answer & solution

Answer: (c) Article 21

Answer: Option 3 — Article 21
The Right to Life (including trauma care) falls underArticle 21→ Option 3.
International Affairs and Summits · International organisations - current

Q18. Who is the chairman of the international organisation, Board of Peace, which was founded in January 2026?

  1. (a) Benjamin Netanyahu
  2. (b) Donald J. Trump
  3. (c) Alyaksandr Lukashenka
  4. (d) Hamad bin Isa Al Khalifa
Answer & solution

Answer: (b) Donald J. Trump

Answer: Option 2 — Donald J. Trump
Donald J. Trumpchairs the 'Board of Peace' (founded Jan 2026) → Option 2. *(Verify against the official key.)*
Defence and Security - Current · Defence acquisitions and indigenous systems

Q19. In February 2026, the Defence Research & Development Organisation (DRDO) successfully demonstrated which advanced propulsion technology from the Integrated Test Range (ITR), Chandipur, Odisha, enabling the development of long-range air-to-air missiles?

  1. (a) Turbojet propulsion technology
  2. (b) Liquid-propellant rocket engine technology
  3. (c) Scramjet propulsion technology
  4. (d) Solid Fuel Ducted Ramjet technology
Answer & solution

Answer: (d) Solid Fuel Ducted Ramjet technology

Answer: Option 4 — Solid Fuel Ducted Ramjet technology
DRDO demonstratedSolid Fuel Ducted Ramjet (SFDR)propulsion for long-range air-to-air missiles → Option 4.
Reports, Indices and Rankings · Global indices and India's rank

Q20. According to the Responsible Nations Index (RNI) 2026, which evaluates countries based on their contribution to global well-being and international responsibility, what rank was secured by India?

  1. (a) 10th position globally
  2. (b) 18th position globally
  3. (c) 16th position globally
  4. (d) 12th position globally
Answer & solution

Answer: (c) 16th position globally

Answer: Option 3 — 16th position globally
India secured the16thposition in the Responsible Nations Index 2026 → Option 3. *(Verify against the official key.)*

Chemistry (9)

Metals and Non-metals · Chemical properties of metals

Q21. When magnesium metal reacts with hot water, what is the main product formed alongside hydrogen gas?

  1. (a) Copper hydroxide
  2. (b) Magnesium oxide
  3. (c) Iron hydroxide
  4. (d) Magnesium hydroxide
Answer & solution

Answer: (d) Magnesium hydroxide

Answer: Option 4 — Magnesium hydroxide
Mg + 2H₂O (hot) →Mg(OH)₂+ H₂↑. The main product with hydrogen ismagnesium hydroxide→ Option 4.
Chemical Reactions and Equations · Oxidation, reduction and redox reactions

Q22. Consider the reaction:MnO₂ + 4HCl → MnCl₂ + 2H₂O + Cl₂Based on the oxygen–hydrogen definition of redox reactions, which substance undergoes reduction in this reaction?

  1. (a) Water forms after oxygen gain
  2. (b) Manganese dioxide loses oxygen
  3. (c) Chlorine gas forms by oxidation
  4. (d) Hydrogen chloride loses hydrogen
Answer & solution

Answer: (b) Manganese dioxide loses oxygen

Answer: Option 2 — Manganese dioxide loses oxygen
In MnO₂ + 4HCl → MnCl₂ + 2H₂O + Cl₂,MnO₂ loses oxygen(Mn goes +4 → +2), so it isreduced→ Option 2.
Atoms, Molecules and Mole Concept · Valency and chemical formulae

Q23. When potassium reacts with chlorine to form potassium chloride, which formula correctly represents the resulting compound based on their combining ratios?

  1. (a) KCl₂
  2. (b) K₂Cl₂
  3. (c) KCl
  4. (d) K₂Cl
Answer & solution

Answer: (c) KCl

Answer: Option 3 — KCl
K (valency 1) + Cl (valency 1) →KCl→ Option 3.
Acids, Bases and Salts · Indicators (natural, synthetic, olfactory)

Q24. Which colour change does phenolphthalein show in a basic solution?

  1. (a) Blue to colourless instantly
  2. (b) Yellow to red immediately
  3. (c) White to green when shaken
  4. (d) Colourless to pink gradually
Answer & solution

Answer: (d) Colourless to pink gradually

Answer: Option 4 — Colourless to pink gradually
Phenolphthalein iscolourless in acid/neutraland turnspinkin a basic solution → Option 4.
Structure of Atom · Isotopes, isobars and isotones

Q25. Chlorine occurs in nature in two isotopic forms, with masses 35 u and 37 u, then average atomic mass of chlorine atom estimated would have been:

  1. (a) 35 u
  2. (b) 35.2 u
  3. (c) 35.5 u
  4. (d) 34.5 u
Answer & solution

Answer: (c) 35.5 u

Answer: Option 3 — 35.5 u
Natural chlorine is ~75% Cl-35 and 25% Cl-37 ⟹ average ≈ (3×35 + 1×37)/4 = 142/4 =35.5 u→ Option 3.
Mixtures, Solutions and Separation · Suspensions and colloids

Q26. Which of the following statements correctly compares the particle sizes of a suspension and a solution?

  1. (a) The particles of a suspension are larger in size than the particles of a solution.
  2. (b) The particles of a suspension are smaller in size than the particles of a solution.
  3. (c) Both have particles of the same size.
  4. (d) Suspension particles are molecular-sized and solution particles are atomic-sized.
Answer & solution

Answer: (a) The particles of a suspension are larger in size than the particles of a solution.

Answer: Option 1 — Suspension particles are larger than solution particles
A suspension haslarge, visible particles; a solution has very small (molecular/ionic) particles. So suspension particles are larger → Option 1.
*(Translated from Bengali; solved in English.)*
Carbon and its Compounds · Allotropes of carbon

Q27. Which of the following statements correctly identifies a key property of diamond, an allotrope of carbon, that distinguishes it from graphite?

  1. (a) Diamond exists in a layered structure like graphite.
  2. (b) Diamond conducts electricity because of delocalised electrons.
  3. (c) Diamond is a non-conductor of electricity due to the absence of free electrons.
  4. (d) Diamond has soft layers that slide over each other.
Answer & solution

Answer: (c) Diamond is a non-conductor of electricity due to the absence of free electrons.

Answer: Option 3 — Diamond is a non-conductor due to the absence of free electrons
In diamond each carbon is bonded to 4 others (no free electrons), so itdoes not conduct electricity(unlike graphite) → Option 3.
Carbon and its Compounds · Homologous series

Q28. Which of the following statements about a homologous series are CORRECT? All members have the same general formula. Each successive member differs by a –CH₂– group. Physical properties remain identical for all members.

  1. (a) Only 2 and 3
  2. (b) Only 1 and 3
  3. (c) Only 1 and 2
  4. (d) 1, 2, and 3
Answer & solution

Answer: (c) Only 1 and 2

Answer: Option 3 — Only 1 and 2
A homologous series: (1) same general formula ✓, (2) successive members differ by –CH₂– ✓, (3) physical properties are NOT identical (they vary gradually) ✗. So 1 and 2 → Option 3.
Environmental Chemistry · Ozone layer and its depletion

Q29. Which of the following devices earlier used CFCs extensively?

  1. (a) Refrigerator
  2. (b) Water purifier
  3. (c) Bicycle
  4. (d) Solar cooker
Answer & solution

Answer: (a) Refrigerator

Answer: Option 1 — Refrigerator
Refrigerators(and ACs) earlier used CFCs as refrigerants → Option 1.

Physics (9)

Magnetism and Magnetic Effects of Current · Electromagnetic induction and Faraday's laws

Q30. Which arrangement will result in the greatest induced current in a wire loop?

  1. (a) Keeping the loop stationary in a magnetic field
  2. (b) Moving the loop parallel to the field lines
  3. (c) Moving the loop slowly into a weak magnetic field
  4. (d) Moving the loop quickly into a strong magnetic field
Answer & solution

Answer: (d) Moving the loop quickly into a strong magnetic field

Answer: Option 4 — Moving the loop quickly into a strong magnetic field
Induced current increases with therate of change of flux; a fast motion into astrongfield gives the greatest induced current → Option 4.
Magnetism and Magnetic Effects of Current · Electric generator and Fleming's right-hand rule

Q31. In an experiment, a metal rod moves northward across a horizontal magnetic field directed east. According to Fleming's Right Hand Rule, what is the direction of the induced current in the rod?

  1. (a) The induced current flows eastward
  2. (b) The induced current flows vertically downward
  3. (c) The induced current flows westward
  4. (d) The induced current flows vertically upward
Answer & solution

Answer: (b) The induced current flows vertically downward

Answer: Option 2 — Vertically downward
By Fleming's Right-Hand Rule (motion north, field east), the induced current is directedvertically downward→ Option 2.
Work, Energy and Power · Numericals on work, energy and power

Q32. A machine completes 3000 J of work in half a minute (30 seconds). What is the average power delivered by the machine?

  1. (a) 300 W
  2. (b) 10 W
  3. (c) 30 W
  4. (d) 100 W
Answer & solution

Answer: (d) 100 W

Answer: Option 4 — 100 W
Power = Work/time = 3000 J / 30 s =100 W→ Option 4.
*(Translated from Bengali; solved in English.)*
Human Eye and the Colourful World · Prism and dispersion of light

Q33. Which of the following statements about dispersion of light are true?
(1) While passing through a glass prism, red light bends the most.
(2) The angle of deviation is the same for all colours.
(3) Dispersion is one of the phenomena responsible for the formation of a rainbow.
(4) The speed of light decreases when it enters a prism from air.

  1. (a) Only statements 1 and 3
  2. (b) Only statements 1 and 2
  3. (c) Only statements 2 and 4
  4. (d) Only statements 3 and 4
Answer & solution

Answer: (d) Only statements 3 and 4

Answer: Option 4 — Only statements 3 and 4
(1) False — red light bends theleast(violet bends most). (2) False — deviation differs with colour. (3) True — dispersion helps form a rainbow. (4) True — light slows entering glass. So3 and 4→ Option 4.
*(Translated from Bengali; solved in English.)*
Human Eye and the Colourful World · Scattering of light (blue sky, red sunset, Tyndall effect)

Q34. A science museum plans an exhibit explaining why the sky looks blue during the day but takes on a reddish tinge at sunrise and sunset. Based on the scattering of light in the atmosphere, which explanation gives the most correct reason for this observation?

  1. (a) The Sun emits more blue light during the day and more red light at sunset.
  2. (b) Dust particles scatter all wavelengths equally, and increased dust at sunset makes red light more visible.
  3. (c) Atmospheric absorption removes red light during the day and blue light at sunset.
  4. (d) Shorter wavelengths are scattered more strongly, while at sunset the longer atmospheric path favours the longer (red) wavelengths.
Answer & solution

Answer: (d) Shorter wavelengths are scattered more strongly, while at sunset the longer atmospheric path favours the longer (red) wavelengths.

Answer: Option 4 — Shorter wavelengths scatter more; at sunset the longer path favours red
Blue (shorter λ) scatters more, so the daytime sky is blue. At sunrise/sunset light travels alonger atmospheric path, scattering out blue and leaving theredto reach us → Option 4.
*(Translated from Bengali; solved in English.)*
Light - Refraction and Lenses · Convex lens - image formation and uses

Q35. A student moves a lighted candle from infinity towards the focus of a convex lens. How does the size of the image change?

  1. (a) The image remains the same size throughout
  2. (b) The image disappears
  3. (c) The image increases in size
  4. (d) The image decreases in size
Answer & solution

Answer: (c) The image increases in size

Answer: Option 3 — The image increases in size
As the object moves from infinity towards the focus of a convex lens, the real image moves away andgrows larger→ Option 3.
Units, Measurement & Dimensions · Derived units and units named after scientists

Q36. Which of the following best represents the correct unit for average velocity in the SI system?

  1. (a) meter per second
  2. (b) kilometer per hour
  3. (c) foot per second
  4. (d) centimeter per minute
Answer & solution

Answer: (a) meter per second

Answer: Option 1 — meter per second
The SI unit of velocity ismetre per second (m/s)→ Option 1.
Motion · Numericals on motion

Q37. A car increases its velocity from 10 m/s to 30 m/s in 5 seconds. What is the acceleration of the car?

  1. (a) 6 m/s²
  2. (b) 10 m/s²
  3. (c) 2 m/s²
  4. (d) 4 m/s²
Answer & solution

Answer: (d) 4 m/s²

Answer: Option 4 — 4 m/s²
a = (v − u)/t = (30 − 10)/5 = 20/5 =4 m/s²→ Option 4.
Work, Energy and Power · Numericals on work, energy and power

Q38. Machine M does 600 J of work in 20 s. Machine N does 900 J of work in 15 s. Which statement is correct?

  1. (a) Machine N develops 1.5 times the power of Machine M.
  2. (b) Machine M develops greater power.
  3. (c) Machine N develops twice the power of Machine M.
  4. (d) Both machines develop the same power.
Answer & solution

Answer: (c) Machine N develops twice the power of Machine M.

Answer: Option 3 — Machine N develops twice the power of Machine M
Power M = 600/20 = 30 W; Power N = 900/15 = 60 W =2 × 30→ Option 3.

Biology (5)

Ecology and Environment · Biogeochemical cycles

Q39. Atmospheric oxygen is used in all of the following processes EXCEPT ____.

  1. (a) Photosynthesis in green plants
  2. (b) Respiration in plants
  3. (c) Combustion of fossil fuels
  4. (d) Respiration in animals
Answer & solution

Answer: (a) Photosynthesis in green plants

Answer: Option 1 — Photosynthesis in green plants
Respiration and combustionuseoxygen;photosynthesis releasesoxygen (it does not consume atmospheric O₂). So the exception is photosynthesis → Option 1.
*(Translated from Bengali; solved in English.)*
Tissues · Meristematic tissues

Q40. Which characteristic is unique to meristematic tissue in plants?

  1. (a) Cells have thick secondary walls
  2. (b) Cells are capable of continuous division
  3. (c) Cells transport water and minerals
  4. (d) Cells mainly provide mechanical support
Answer & solution

Answer: (b) Cells are capable of continuous division

Answer: Option 2 — Cells are capable of continuous division
The defining feature ofmeristematic tissueis its ability todivide continuously→ Option 2.

Q41. Which chamber of the human heart pumps blood directly to the lungs for oxygenation?

  1. (a) Left ventricle
  2. (b) Left atrium
  3. (c) Right atrium
  4. (d) Right ventricle
Answer & solution

Answer: (d) Right ventricle

Answer: Option 4 — Right ventricle
Theright ventriclepumps deoxygenated blood to the lungs → Option 4.
Tissues · Permanent plant tissues (simple and complex)

Q42. Dead structures are often “hard and rigid.” Which simple permanent tissue is mainly made of dead cells that provide mechanical strength to plants?

  1. (a) Sclerenchyma
  2. (b) Epidermis
  3. (c) Parenchyma
  4. (d) Meristematic tissue
Answer & solution

Answer: (a) Sclerenchyma

Answer: Option 1 — Sclerenchyma
Sclerenchymais made of dead, thick-walled cells that give mechanical strength → Option 1.
Ecology and Environment · Pollution - effects on living beings

Q43. In a grassland food chain, the maximum accumulation of a chemical pesticide will be found in the body of ______.

  1. (a) Frog
  2. (b) Grasshopper
  3. (c) Grass
  4. (d) Hawk
Answer & solution

Answer: (d) Hawk

Answer: Option 4 — Hawk
The pesticide biomagnifies up the chain, so thetop consumer (hawk)shows the maximum accumulation → Option 4.
*(Translated from Bengali; solved in English.)*
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