Which of the following is of more immediate concern regarding the carbon cycle?

In a pond near a village,a large number of fish suddenly die. Which of the following could be the reason for this?
$(a)$ Large amounts of urea and phosphate are used as fertilizers in nearby fields.
$(b)$ $DDT$ was sprayed in the entire area.
$(c)$ The pond water has become green and dirty.
$(d)$ The population of phytoplankton in the pond has decreased,reducing the photosynthetic capacity.
Which two of the above reasons are responsible?

Which of the following is not an effect of global warming?

The Government of India has introduced a concept to work closely with local communities for the protection and management of forests,which is called:

$FOAM$ stands for $........$

Which radiations reaching the Earth's surface are absorbed by the gases present in the Earth's atmosphere?