Bright Tutorials Bright Tutorials
ICSE Class 10 Biology Question 8 of 10

Pollution — A Rising Environmental Problem — Question 6

Back to all questions
6
Question

Question 6

Study the figure shown here and answer the following questions.

Study the figure shown here and answer the following questions. Identify the kind of pollution and define it. Mention four main sources of the pollution. Write two harmful effects of the above-mentioned pollution for the living organisms. Pollution A Rising Environmental Problem, Concise Biology Solutions ICSE Class 10.

(a) Identify the kind of pollution and define it.

(b) Mention four main sources of the pollution.

(c) Write two harmful effects of the above-mentioned pollution for the living organisms.

Answer

(a) Acid rain. Gases such as CO2, SO2 and oxides of nitrogen get dissolved in rain drops falling on the earth as rain. This constitutes acid rain.

(b) Four main sources of acid rain are:

  1. Exhaust from vehicles contains CO2, SO2 and CO.
  2. Smoke released by factory chimneys contain CO2, SO2 and oxides of nitrogen.
  3. Burning of garbage releases CO2 and other harmful gases.
  4. Brick kilns produce ash which mixes with air to contribute to acid rain.

(c) Two harmful effects of acid rain on the living organisms are:

  1. Damage to vegetation by pollution of the soil.
  2. Fish and other aquatic organisms are harmed due to increased acidity of water in lakes and rivers.