causes of pollution

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Reaction between sulfur dioxide and oxygen results in

Reaction between sulfur dioxide and oxygen results in
  • A. sulfuric acid
  • B. acid rain
  • C. alkali rain
  • D. both A and B
  • Correct Answer: Option D

Process by which harmful substances are added to environment is called as

Process by which harmful substances are added to environment is called as
  • A. Silting
  • B. Pollution
  • C. Desertification
  • D. Flooding
  • Correct Answer: Option B

Incomplete burning of fuel causes

Incomplete burning of fuel causes
  • A. a decrease in annual rain fall
  • B. a decay of fossil fuels
  • C. rapid sheet erosion
  • D. pollution
  • Correct Answer: Option D

Reaction between oxides of nitrogen (N2) and oxygen (O2) results in

Reaction between oxides of nitrogen (N2) and oxygen (O2) results in
  • A. formation of nitric acid
  • B. acid rains
  • C. alkali rain
  • D. both A and B
  • Correct Answer: Option D

Lives of organisms in ecosystem become threatened due to

Lives of organisms in ecosystem become threatened due to
  • A. urbanization
  • B. industrialization
  • C. introduction of toxics in ecosystem
  • D. rapid housing
  • Correct Answer: Option C