AGENDA - 21 specifically advocated to devise strategies to
A. Promote economic growth to support increasing human population with adequate environment care
B. Control human population explosion, resources over use and deteriorating environment quality
C. Hat and reverse the effects of environmental degradation to promote sustainable and environmentally sound development
D. Promote economic development and environmental with a view to reduce poverty and faster human welfare
Answer: Option A
Ozone depletion is caused by the increase in the level of
A. Water vapour
B. Chlorofluro carbon (CFC)
C. Oxygen
D. Carbon monoxide
Which of the following is a beneficial activity of microorganisms?
A. Some microorganisms use carbon dioxide
B. Some microorganisms provide nitrogen for plant growth
C. Some microorganisms are used in sewage treatment
D. All the above
Which of the following parameters indicates the organic pollution of a water sample?
A. pH
B. Turbidity
C. Hardness
D. COD
The chemical system for removal of the ions of level of salt is called
A. Ion transfer
B. Ionization
C. Ion exchange
D. Ion vaporization
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