Ozone Depletion
When did United states ban CFCs usage in spray cans?
1975
1978
1976
1970
1978
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What screens out 99% of harmful rays of sunlight?A. CO
B. CO2
C. O3
D. O2
According to a general survey, One in five Americans would be more at risk in developing:
A. Skin Cancers
B. Cataracts
C. Asthma
D. Bone Cancer
A single molecule of ‘feron’ gas can destroy a thousands of
A. Ozone Molecules
B. Mathene molecules
C. Cl molecules
D. Bromine Oxide
Without ozone layer all terrestrial animals will be
A. extinct
B. Vanished
C. Dead
D. Resurrected
Nitric oxide gas reacts with ozone molecule to form
A. Nitrogen di Oxide
B. Nitrogen Oxide
C. Bromine Oxide
D. Fluorine Oxide
Troposphereic’ ozone harmful effects on humans, included:
A. Chest pain
B. Throat irritation
C. Vomiting
D. Both a and b
In 1992, a team of forty scientist, announced a record high concentration of;
A. Chlorine monoxide
B. Carbon monoxide
C. Hydrogen monoxide
D. Carbon dioxide
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