Option D, Chlorophytes
These are taxons of green algae and consists of both chlorophyll A and B. Chlorophtyas usually live in fresh water. These are able to produce their own food and thus form a mutual relationship with lichens to provide food to lichen and in response to which lichen provide raw material to chlorophytes for food production.
Carbon dioxide is the correct answer
Precipitation is the answer. Hope this helps!:)
The following of what? It sounds like there is more than one answer.
...strong hydrogen bonds between the oxygen and hydrogen atoms of neighbouring atoms increases the amount of energy needed to cause water to change states.
