Organisms that tolerate narrow range of salinity are

• Euryhaline

• Stenohaline

• Eurythermal

• Hypersaline

• Hypersaline

Match the environmental activist in Column I with the environmental issue in Column II and choose the right option

Column I	Column II
1. Ramesh Chandra Dagar	A. Conservation od forests
2. Ahmed Khan	B. Organic farming
3. Amrita Devi	C. Plastic waste recycling.

• 1 - B; 2 - C; 3 - A

• 1 - C; 2 - A; 3 - B

• 1 - A; 2 - B; 3 - C

• 1 - B; 2 - A; 3 - C

• 1 - B; 2 - A; 3 - C

Which one of the following is not in situ conservation method?

• National parks

• Wildlife sanctuary

• Biosphere reserves

• Scared groves

• Scared groves

Match Column-I with Column-II

Column I	Column II
A. Saprophyte	i. Symbiotic association of fungi with plant roots
B. Parasite	ii. Decomposition of dead organic materials
C. Lichens	iii. Living on living plants or animals
D. Mycorrhiza	iv. Symbiotic association of algae and fungi

Choose the correct answer from the option given below

• A - iii; B - ii; C - i; D - iv

• A - ii; B - i; C - iii; D - iv

• A - ii; B - iii; C - iv; D - i

• A - i; B - ii; C - iii; D - iv

Which one of the following is not a method of in situ conservation of biodiversity?

• Wildlife Sanctuary

• Botanical Garden

• Sacred Grove

• Biosphere Reserve

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

• for conservation of biodiversity and sustainable utilization of its benefits

• 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

• to reduce CO₂ emissions and global warming

Which of these following methods is the most suitable for disposal of nuclear waste?

• Bury the waste under Antarctic ice-cover

• Dump the waste within rocks under deep ocean

• Bury the waste within rocks deep below the Earth's surface

• Shoot the waste into space

Which of the following is the most important cause for animals and plants being driven to extinction?

• Drought and floods

• Economic exploitation

• Alien species invasion

• Habitat loss and fragmentation