Question
Biology Question on Kingdom Plant
Algae are useful because they
A
are large in number
B
are used in alcoholic fermentation
C
purify the atmosphere
D
are used in curdling of milk
Answer
purify the atmosphere
Explanation
Solution
Maximum solar energy is trapped by algae and hence they evolve maximum amount of oxygen by the process of photosynthesis. Therefore, algae are useful because they purify the atmosphere by releasing oxygen.