Mangrove forests can be found in which of the following river deltas?

1) Ganga-Brahmaputra

2) Mahanadi

3) Godavari

4) Krishna

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In terms of self sustenance and endurance, which among the following is the most stable ecosystem?

The Oak trees of the Himalayan region are a concern to the region because

Desert plants have which of the following adaptations for survival?

1) Stomata arranged in deep pits to minimise water loss through transpiration

2) Special photosynthetic pathway enabling their stomata to remain closed during day time

3) Roots performing photosynthetic functions

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How does silting of water bodies affect aquatic life?

1) It results into increased rates of egg survival causing population boom in water bodies.

2) Coral polyps grow more favourably in silted and shallow water bodies.

3) Silt acts as a vehicle for certain pesticides into water bodies which adversely affect aquatic life.

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1) It results into increased rates of egg survival causing population boom in water bodies.

2) Coral polyps grow more favourably in silted and shallow water bodies.

3) Silt acts as a vehicle for certain pesticides into water bodies which adversely affect aquatic life.

Select the correct answer using the codes below.