🌱 Conservation of Plants and Animals – MCQs for Class 8 Science

Part 3: Q51 – Q75

Q51. Which of these is a man-made cause of forest destruction?

A) Landslides
B) Earthquakes
C) Mining
D) Floods

✅ Correct Answer: C) Mining

Explanation:

• A, B, D – Natural causes.
• C) ✔ Mining involves cutting trees and destroying soil, a human cause.

Q52. Which gas increases in the atmosphere due to deforestation?

A) Oxygen
B) Nitrogen
C) Carbon dioxide
D) Hydrogen

✅ Correct Answer: C) Carbon dioxide

Explanation:

• A) Oxygen – Decreases due to fewer trees.
• B, D – Not affected significantly.
• C) ✔ Deforestation → less CO₂ absorbed → more in atmosphere.

Q53. Which is the main purpose of a biosphere reserve?

A) Protect biodiversity
B) Promote industries
C) Provide wood
D) Increase population

✅ Correct Answer: A) Protect biodiversity

Explanation:

• A) ✔ Biosphere reserves conserve species, ecosystems, and culture.
• B, C, D – Not purposes.

Q54. Which animal is killed for ivory?

A) Tiger
B) Elephant
C) Rhino
D) Crocodile

✅ Correct Answer: B) Elephant

Explanation:

• A) Tiger – For bones and skin.
• B) ✔ Elephants are poached for ivory (tusks).
• C) Rhino – For horn.
• D) Crocodile – For skin.

Q55. Which practice prevents soil erosion?

A) Terrace farming
B) Overgrazing
C) Deforestation
D) Mining

✅ Correct Answer: A) Terrace farming

Explanation:

• A) ✔ Terrace farming reduces runoff and soil loss.
• B, C, D – Cause erosion.

Q56. Which of these animals is endemic to the Nilgiri Biosphere Reserve?

A) Lion-tailed macaque
B) Polar bear
C) Kangaroo
D) Penguin

✅ Correct Answer: A) Lion-tailed macaque

Explanation:

• A) ✔ Found only in Western Ghats.
• B, C, D – Belong to other regions.

Q57. Which of these does NOT lead to deforestation?

A) Building dams
B) Mining
C) Tourism development
D) Recycling paper

✅ Correct Answer: D) Recycling paper

Explanation:

• A, B, C – Activities that cut trees.
• D) ✔ Recycling reduces need for cutting trees.

Q58. Which forest is home to the Royal Bengal Tiger?

A) Gir forest
B) Sundarbans
C) Kaziranga
D) Periyar

✅ Correct Answer: B) Sundarbans

Explanation:

• A) Gir – Asiatic lion.
• B) ✔ Sundarbans mangroves are home to tigers.
• C) Kaziranga – Rhinos.
• D) Periyar – Elephants.

Q59. Which activity causes maximum soil erosion?

A) Planting trees
B) Overgrazing
C) Mulching
D) Crop rotation

✅ Correct Answer: B) Overgrazing

Explanation:

• A, C, D – Prevent erosion.
• B) ✔ Overgrazing removes topsoil protection.

Q60. The species that are in immediate danger of extinction are called:

A) Endangered
B) Vulnerable
C) Extinct
D) Endemic

✅ Correct Answer: A) Endangered

Explanation:

• A) ✔ “Endangered” means at high risk of extinction.
• B) Vulnerable – Less severe.
• C) Extinct – Already gone.
• D) Endemic – Local species.

Q61. Which of these is a benefit of forests?

A) Increase soil erosion
B) Absorb carbon dioxide
C) Cause desertification
D) Increase global warming

✅ Correct Answer: B) Absorb carbon dioxide

Explanation:

• A, C, D – Negative impacts of deforestation.
• B) ✔ Forests act as carbon sinks.

Q62. Which plant is endemic to Pachmarhi Biosphere Reserve?

A) Sal
B) Mango
C) Neem
D) Coconut

✅ Correct Answer: A) Sal

Explanation:

• A) ✔ Sal tree is endemic here.
• B, C, D – Common plants, not endemic.

Q63. Which project is launched for conservation of elephants?

A) Project Rhino
B) Project Lion
C) Project Elephant
D) Project Tiger

✅ Correct Answer: C) Project Elephant

Explanation:

• A, B, D – For other species.
• C) ✔ Initiated in 1992 to conserve elephants.

Q64. Which type of soil conservation involves growing trees along the boundary of fields?

A) Crop rotation
B) Shelter belts
C) Terrace farming
D) Mulching

✅ Correct Answer: B) Shelter belts

Explanation:

• A, C, D – Other soil management practices.
• B) ✔ Shelter belts reduce wind erosion.

Q65. Which of these is NOT a natural cause of deforestation?

A) Cyclones
B) Floods
C) Earthquakes
D) Mining

✅ Correct Answer: D) Mining

Explanation:

• A, B, C – Natural causes.
• D) ✔ Mining is man-made.

Q66. Which animal is an endemic species of Gir forest?

A) Asiatic lion
B) Tiger
C) Rhino
D) Leopard

✅ Correct Answer: A) Asiatic lion

Explanation:

• A) ✔ Only Gir has Asiatic lions.
• B, C, D – Found elsewhere.

Q67. Which process helps to restore forests naturally after cutting?

A) Reforestation
B) Deforestation
C) Overgrazing
D) Poaching

✅ Correct Answer: A) Reforestation

Explanation:

• A) ✔ Natural or artificial replanting of trees.
• B, C, D – Cause destruction.

Q68. Which of these animals is poached for its skin?

A) Crocodile
B) Tiger
C) Leopard
D) All of these

✅ Correct Answer: D) All of these

Explanation:

• A, B, C – All hunted for skin.
• D) ✔ Correct.

Q69. Which of these is NOT a step in soil conservation?

A) Terrace farming
B) Afforestation
C) Overgrazing
D) Shelter belts

✅ Correct Answer: C) Overgrazing

Explanation:

• A, B, D – Soil conservation practices.
• C) ✔ Overgrazing worsens erosion.

Q70. Which of the following is a natural calamity that destroys forests?

A) Earthquake
B) Overgrazing
C) Poaching
D) Mining

✅ Correct Answer: A) Earthquake

Explanation:

• A) ✔ Natural calamity.
• B, C, D – Human activities.

Q71. Which biosphere reserve is located in Madhya Pradesh?

A) Nanda Devi
B) Pachmarhi
C) Nilgiri
D) Sundarbans

✅ Correct Answer: B) Pachmarhi

Explanation:

• A, C, D – Other states.
• B) ✔ Located in Satpura ranges of MP.

Q72. Which of these is an extinct species in India?

A) Asiatic lion
B) Cheetah
C) Tiger
D) Leopard

✅ Correct Answer: B) Cheetah

Explanation:

• A, C, D – Still exist.
• B) ✔ Cheetah became extinct in India in 1950s.

Q73. Which step is helpful in conservation of biodiversity?

A) Creating national parks
B) Banning hunting
C) Educating people
D) All of these

✅ Correct Answer: D) All of these

Explanation:

• A, B, C – All are helpful.
• D) ✔ Correct answer.

Q74. Which plant is an endemic species of the Himalayas?

A) Balsam
B) Tea
C) Bamboo
D) Mango

✅ Correct Answer: A) Balsam

Explanation:

• A) ✔ Himalayan balsam is endemic.
• B, C, D – Found elsewhere too.

Q75. Which step does NOT help in protecting endangered animals?

A) Hunting bans
B) Habitat conservation
C) Wildlife sanctuaries
D) Increasing poaching

✅ Correct Answer: D) Increasing poaching

Explanation:

• A, B, C – Support conservation.
• D) ✔ Poaching kills endangered animals.

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