Question

What is/are the harmful effect(s) of particulate matter?

• A. Affects the rate of photosynthesis and transpiration in plants.
• B. Causes bronchitis, asthma and anemia in human beings.
• C. Affects nervous system in human beings.
• D. Causes fluorosis in human beings.

Answer 1

Answer: (A), (B), (C)

The correct options are
A Affects the rate of photosynthesis and transpiration in plants.
B Causes bronchitis, asthma and anemia in human beings.
C Affects nervous system in human beings.

Particulate matter such as dust and smoke spoils our clothes, reduces visibility and affect buildings. Dust and smoke get deposited on plant leaves and hence the rate of photosynthesis and transpiration is affected. They also cause human bronchitis and asthma. Particles of lead oxides in vehicle exhaust may cause anemia, brain damage and even death. Mercury particles cause minimal disease that affects the nervous system and can lead to death.Dangerous substances such as fluorine blended in ground water trigger fluorosis.