Question

Which of the following statements is true about the Greenhouse effect? *
a. It exchanges the incoming and outgoing radiation that cools the planet.
b. It keeps the surface warm as the incoming solar radiation reaches the Earth, the surface gives off infrared radiation or heat, that the gases trap and keep near the ground level.
c. It occurs when the gases in Earth’s atmosphere trap the light of the moon.
d. Human activities are not changing Earth’s natural Greenhouse effect.


International Measures to Save Ozone layer are: *
a. Strict action against the countries for the usage of ozone destroying chemicals.
b. Countries should not try to avoid the usage of CFCs.
c. Substantial demand for the harmful chemicals should be increased.
d. Nations should avoid the trade of pesticides.


Harmful effects of Nitrogen Dioxide on human beings: *
a. Toxic effects through several mechanisms including interface with respiratory tract.
b. Toxic, in increasing concentrations, nose and throat irritation, fatigue, lack of coordination.
c. Toxic, respiratory tract problems with increasing concentrations, nasal irritation, breathing discomfort, etc.
d. Toxic easily enters blood in increasing concentrations, impairment of psychomotor function, headache.

Answer 1

Answer:

d. Toxic easily enters blood increasing concentration, impairment, of psychomotor function, headache.

Answer 2

Answer:

a)

d)

b)

Explanation:

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