Biodiversity and Conservation
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Levels and Patterns of Biodiversity
SubtopicLevels and Patterns of Biodiversity under Biodiversity and Conservation for Grade 12 CBSE.
Preview questions (no answers)
- 1.
Alexander von Humboldt's studies were primarily conducted in the jungles of:
A.Africa
B.South America
C.South East Asia
D.Australia
- 2.
Which of the following is NOT a reason for high tropical biodiversity?
A.More solar energy
B.Longer evolutionary time
C.Constant environment
D.Frequent volcanic eruptions
- 3.
What happens to the slope of the species-area relationship as the area analyzed becomes much larger (e.g., a whole continent)?
A.It becomes flatter
B.It becomes steeper
C.It remains the same
D.It becomes zero
Download the worksheet for Biodiversity and Conservation - Levels and Patterns of Biodiversity to practice offline. It includes additional chapter-level practice questions.
Importance and Loss of Biodiversity
SubtopicImportance and Loss of Biodiversity under Biodiversity and Conservation for Grade 12 CBSE.
Preview questions (no answers)
- 1.
The Amazon rain forest is being cleared primarily for which of the following?
A.Soya bean cultivation
B.Industrial development
C.Building new cities
D.Mining minerals
- 2.
The recent extinction of Steller's sea cow occurred in which country?
A.Mauritius
B.Australia
C.Russia
D.Africa
- 3.
Approximately what percentage of all recorded species are plants (including algae, fungi, bryophytes, gymnosperms, and angiosperms)?
A.70 percent
B.22 percent
C.50 percent
D.10 percent
Download the worksheet for Biodiversity and Conservation - Importance and Loss of Biodiversity to practice offline. It includes additional chapter-level practice questions.
Biodiversity Conservation (In-situ and Ex-situ)
SubtopicBiodiversity Conservation (In-situ and Ex-situ) under Biodiversity and Conservation for Grade 12 CBSE.
Preview questions (no answers)
- 1.
The primary goal of the Biodiversity Bill 2002 was to protect India’s biodiversity and ensure:
A.Increased timber export
B.Equitable sharing of benefits from traditional knowledge
C.Complete ban on all research
D.Conversion of forests to agricultural land
- 2.
Ex-situ conservation is often the only option when:
A.A population is very large and healthy
B.A species is threatened or near extinction in its natural home
C.We want to increase the forest area
D.The habitat is perfectly safe
- 3.
Which of these regions is recognized as a 'Sacred Lake' in India?
A.Dal Lake
B.Chilika Lake
C.Khecheopalri Lake in Sikkim
D.Wular Lake
Download the worksheet for Biodiversity and Conservation - Biodiversity Conservation (In-situ and Ex-situ) to practice offline. It includes additional chapter-level practice questions.