Where does the ozone layer lie in the atmosphere?
A. Troposphere
B. Stratosphere
C. Mesosphere
D. Thermosphere
Correct Answer: B. Stratosphere
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A. Troposphere
B. Stratosphere
C. Mesosphere
D. Thermosphere
A. Transpiration
B. Condensation
C. Evaporation
D. Chlorination
A. Expressed in number
B. Expressed in words
C. Both of these
D. None of these
A. Ovum
B. Mitochondria
C. Sperm
D. Neuron
A. 1/6th
B. 1/5th
C. Half
D. Equal to 6times
A. Ovum
B. Mitochondria
C. Sperm
D. Neuron
A. covering water
B. draining water
C. cleaning water
D. All of these