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Q.1) Consider the following statements about Indian Ocean Dipole (IOD)

1. It is an atmosphere-ocean coupled phenomenon in the tropical Indian Ocean characterized by a difference in sea-surface temperatures (SST)
2. Positive IOD is characterized by warmer than normal SSTs in the eastern equatorial Indian Ocean and cooler than normal SSTs in the western tropical Indian Ocean
3. Negative IOD is characterized by cooler than normal sea-surface temperatures in the eastern equatorial Indian Ocean and warmer than normal sea-surface temperatures in the western tropical Indian Ocean
4. Negative IOD has a more direct and immediate impact on the North-East monsoon

Which of the following statements is/are correct?

1. Only 1
2. 1, 2 and 4
3. 1 and 4
4. All of the above

Q.2) Consider the following statements about Hypersaline lakes

1. The water of hypersaline lakes has minimum buoyancy
2. Dead Sea is the largest hyper saline lake in the world
3. Araruama Lagoon in Brazil is the deepest hyper saline lake in the world
4. The salinity of hyper saline lakes is always less than that of ocean water

Which of the following statements is are incorrect?

1. 1, 2 and 3
2. 1, 3 and 4
3. 1 and 4
4. All of the above 

Q.3) Green GDP means

1. Conventional GDP figures adjusted for the environmental costs of economic activities
2. Monetary value of the Forests
3. Growth of Green Investments in economy
4. Accounts showing the monetized loss of biodiversity, costs caused by climate change

Select the correct code:

1. 1 and 3
2. 1 and 4
3. 1, 3 and 4
4. All of the above

Q.4) Consider the following statements with respect to Golden Mahseer Fish.

1. It is the longest-living freshwater fish
2. It is native to mountain and sub-mountain regions
3. It inhabit only rivers
4. It is an omnivore

Select the correct code

1. 1, 2 and 3
2. 1, 2 and 4
3. 1 and 2
4. All of the above

Q.5) Consider the following statements:

1. Mixing fly ash in soil can help farmers increase production of crops and vegetables
2. Fly ash can be mixed with cement thus reducing the cost of construction.
3. Fly ash can cover the surface of plant leaves and thus helps in increasing nutrient capacity.
4. Fly ash bricks are light weight and offer high strength and durability.
5. Use of fly-ash instead of lime in agriculture can reduce net CO2 emission and also reduce global warming.

Which of the above statements are correct w.r.t Fly Ash?

1. 1, 2 , 3 and 4
2. 2, 3, 4 and 5
3. 1, 2, 4 and 5
4. All of the above

All the best

IASbaba