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Q. Sediments in water blocks the:
(A) Ethane
(B) Sunlight
(C) Carbon dioxide
(D) Oxygen
Answer: (B) Sunlight
Q. Which of the following components include the physical element of the environment?
(A) climate and temperature
(B) water bodies and humidity
(C) landforms and air
(D) all of these
Answer: (D) all of these
Q. Poisonous substances that can be present in industrial wastes does not contain
(A) phosphate
(B) nitrates
(C) oxygen
(D) mercury and lead
Answer: (C) oxygen
Q. Global warming leads to:
(A) water shortage
(B) intense storm damage
(C) drought
(D) all of above
Answer: (D) all of above
Q. Chemical substances used to destroy weeds in crops is called:
(A) herbicides
(B) pesticides
(C) monoxide
(D) nitrates
Answer: (B) pesticides