Expand the following abbreviations:

(a) ACTH

(b) ABA

A basement godown is stocked with bags of food grains. It is observed that the walls of the godown cracked after being flooded with rain water. Explain the phenomenon.

The Amazon rain forest is referred to as the ‘Lungs of the Earth’. It plays an important role in climate regulation through photosynthesis. However, this delicate ecosystem is facing threats from deforestation, climate change and human encroachment which can lead to irreversible environmental consequences.

(a) How does photosynthesis contribute to the Amazon rain forests’ reputation as the ‘Lungs of the Earth’?

(b) In what way is the environment affected by deforestation?

(c) Name the pigment that captures the light energy during photosynthesis.

Ravi cuts his finger while chopping vegetables. The bleeding from the injury did not stop immediately. What kind of genetic disorder is he suffering from?