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d. Destruction of habitat
a. carbon dioxide and water
d. 80 dB.
c. burning mosquito coil
c. Bone
Which one of the following is not a major characteristic feature of biodiversity hot spots?
d. Destruction of habitat
d. Destruction of habitat
See lessCatalytic converters are fitted into automobiles to reduce emission of harmful gases. Catalytic converters change unburnt hydrocarbons into:
a. carbon dioxide and water
a. carbon dioxide and water
See lessThe loudness of a sound that a person can withstand without discomfort is about
d. 80 dB.
d. 80 dB.
See lessAmong the following which one causes more indoor chemical pollution?
c. burning mosquito coil
c. burning mosquito coil
See lessWhich of the following material takes the longest time for biodegradation?
c. Bone
c. Bone
See less