AIIMS 2002
- Exam
- AIIMS
- Year
- 2002
- Subject
- Botany
- Chapter
- Plant Kingdom
AIIMS 2002 · Botany · Plant Kingdom
Algae are useful because they
Algae are useful because they
Options
- Aare large in number
- Bare used in alcoholic fermentation
- Cpurify the atmosphere
- Dare used in curdling of milk.
Correct answer
C. purify the atmosphere
Step-by-step 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.