The Earth Summit held in Rio de Janeiro in 1992 was called:

NEET-2019 [Biodiversity-and-Conservation] [class-xii ]

• for conservation of biodiversity and sustainable utilization of its benefits.
• to reduce CO2 emissions and global warming.
• to assess threat posed to native species by invasive weed species.
• for immediate steps to discontinue use of CFCs that were damaging the ozone layer.
Correct Option: A  [ for conservation of biodiversity and sustainable utilization of its benefits. ]

Remark:

The type of conservation in which the threatened species are taken out from their natural habitat and placed in special setting where they can be protected and given special care is called:

NEET-2024 [Biodiversity-and-Conservation] [class-xii ]

• Biodiversity conservation
• in-situ conservation
• Sustainable development
• Semi-conservative method
Correct Option: A  [ Biodiversity conservation ]

Remark:

Tropical regions show greatest level of species richness because:

A. Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification.
B. Tropical environments are more seasonal.
C. More solar energy is available in tropics.
D. Constant environments promote niche specialization.
E. Tropical environments are constant and predictable.

Choose the correct answer from the options given below.

NEET-2024 [Biodiversity-and-Conservation] [class-xii ]

• A and B only
• A, C, D and E only
• A, B and D only
• A, B and E only
Correct Option: B  [ A, C, D and E only ]

Remark: Explanation: NCERT Page no.261-262

These are regarded as major causes of biodiversity loss:

A. Over exploitation
B. Co-extinction
C. Mutation
D. Habitat loss and fragmentation
E. Migration

Choose the correct option:

NEET-2024 [Biodiversity-and-Conservation] [class-xii ]

• A, B, C and D only
• A, C and D only
• A, B and D only
• A, B and E only
Correct Option: C  [ A, B and D only ]

Remark: Explanation: NCERT Page. 264 (Topic-15.1.4 Loss of Biodiversity)