Answer:
The polution from burning the trees. Also, the loss of oxygen from the loss of trees.
Explanation:
hope this helps a little
Answer:
As they produce food by the process of photosynthesis which cannot be done by anyone else. Plants use chlorophyll, CO2 and H2O in photosynthesis( which is a biochemical process). Plants became a cause of life on earth. Hence plants are the ultimate source of food on earth.
Answer:
c.All are halogens, so they are not very chemically active,
When molecules uses energy for transportation across the cell, then it is known as "Active Transport"
So, option B is your answer.
Hope this helps!
