Biodiversity & Conservation Chapter-Wise Test 7

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which of the following is NOT considered part of ecosystem diversity?

Deserts
Rainforests
Genetic variation in a species
Wetlands
3

Genetic variation belongs to genetic diversity, whereas ecosystem diversity includes different ecosystems such as deserts, rainforests, wetlands, and coral reefs.

Which of the following is an ecosystem service provided by biodiversity?

Providing industrial chemicals
Maintaining climate stability
Producing synthetic medicines
Creating artificial habitats
2

Biodiversity provides ecosystem services such as pollination, nutrient cycling, nutrient storage, climate regulation, flood control, and soil formation.

Which of the following is an incorrect statement about protected areas?

National parks help protect biodiversity.
Wildlife sanctuaries allow conservation while permitting limited human activities.
Protected areas contribute to in situ conservation.
Protected areas are designed for industrial development.
4

Protected areas such as national parks, wildlife sanctuaries, and biosphere reserves are established for in situ conservation, not for industrial development.

Which of the following is NOT a reason for greater biodiversity in tropical regions?

Long evolutionary time
Less seasonal variation
Higher solar energy input
Frequent glaciations
4

Tropical regions have remained relatively undisturbed over evolutionary time and have not experienced repeated glaciations, resulting in greater biodiversity.

Which of the following statements about species extinction is correct?

Human activities have accelerated species extinction rates.
Extinction is always a natural process and never influenced by humans.
Extinct species can always be revived through conservation.
Only large animals face extinction threats.
1

Human activities have accelerated extinction rates to about 100–1000 times the natural background rate through habitat loss and fragmentation, overexploitation, alien species invasions, and co-extinctions.

Which of the following is an example of ex situ conservation?

National park
Wildlife sanctuary
Botanical garden
Biosphere reserve
3

Botanical gardens conserve plant species outside their natural habitats and are examples of ex situ conservation.

According to NCERT, India accounts for approximately what percentage of the world's recorded species?

2.4%
5%
8.1%
12%
3

India occupies about 2.4% of the world's land area but harbours about 8.1% of the world's recorded species.

Which of the following is a narrowly utilitarian reason for biodiversity conservation?

Aesthetic value of nature
Oxygen production by forests
Use of plants for medicine
Pollination by insects
3

Narrowly utilitarian values include direct benefits such as food, fuel, fibre, medicines, and industrial products obtained from biodiversity.

Which of the following statements about ecosystem services is incorrect?

Ecosystem services include climate regulation and water purification.
Ecosystem services provide economic benefits to humans.
Ecosystem services are not influenced by biodiversity loss.
Pollination by insects is an example of an ecosystem service.
3

Biodiversity loss adversely affects ecosystem services such as pollination, nutrient cycling, climate regulation, and water purification.

According to NCERT, biodiversity conservation has three broad categories of values. Which of the following is one of them?

Ethical value
Commercial value
Political value
Recreational value
1

NCERT groups biodiversity values into narrowly utilitarian, broadly utilitarian, and ethical values. Ethical value recognizes the intrinsic right of every species to exist.

Performance Summary

Score:

Category Details
Total Attempts:
Total Skipped:
Total Wrong Answers:
Total Correct Answers:
Time Taken:
Average Time Taken per Question:
Accuracy:
0