Is that true or false ?

Write “True” or “False” :
A.
The CO₂ causes asphyxial death due to oxygen starvation.
B.
Acid rain caused due to oxides of nitrogen and sulphur.
C.
Ozone destroys the crops of potato, alfalfa and spinach.
D.
The UV rays and IR rays are ionising radiations.
E.
The photochemical smog contains PAN and Ozone.

A. FALSE
B. TRUE
C. TRUE
D. FALSE
E. TRUE

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Write about the contribution of Ahmed Khan to reduce the amount of plastic waste.

Why is ozone layer in stratosphere called a protective layer ? Write a short note on the causes and effects of ozone depletion.

Why is the use of unleaded petrol recommended for motor vehicles equipped with catalytic converters ?

A factory drains its waste water into the nearby lake causing algal bloom.

(a) How was the algal bloom caused ?

(b) What would be the consequences ?

(c) Give the term for the cause of it.