Fill in the blanks with the help of words given in bracket after each sentence.

Air pollution can be defined as an alteration of _(1) that can be characterized by measurements of chemical, biological or physical pollutants in the air. Many industries are responsible for causing air pollution. They are a major source of pollutants like (2) and nitrogen dioxide. Air pollution is a major contributor to the formation of acid rain, global warming, and climate change. In fact, the abundance of _(3)______ in the air is one of the causes global warming.

Open in App

Solution

Suggest Corrections

Similar questions

Q. The pollution of air caused by burning petroleum fuels (like petrol and diesel) in vehicles can be controlled by fitting a device X in the exhaust system of vehicles.

(a) Name the device X.
(b) How does this device help in controlling air pollution?

Q. Fill in the blanks with the help of words given in bracket after each sentence.

(a) When air is contaminated by ________ substances which have a ________ effect on both the ________ and ________, it is referred to as ________.

(air pollution, harmful, living, unwanted, non-living, pollutants).

(b) Many ________ are responsible for causing ________ pollution. Petroleum ________ are a major source of ________ pollutants like ________ and ________.

(sulphur dioxide, refineries, industries, nitrogen dioxide, gaseous, liquid, people, air)

(tap, liters, brushing, washing, drops)

(d) Water which is suitable for _________ is called ________ water.

(washing, bathing, drinking, potable, soft)

(e) Water which looks clean still has disease-carrying ________ and ________ impurities.

(insects, microorganisms, particles, dissolved, harmful).

Question 21
Fill in the blanks with the help of words given in bracket after each sentence.
(a) When air is contaminated by___ substances which have a ___ effect on both the ___ and ___, it is referred to as ___. (air pollution, harmful, living, unwanted, non-living, pollutants).
(b) Many ___ are responsible for causing ___ pollution. Petroleum ___ are a major source of ___ pollutants like ___ and ___. (sulphur dioxide, refineries, industries, nitrogen dioxide, gaseous, liquid, people, air).
(c) While ___ your teeth, leaving the ___ running may waste several ___ of water. (tap, litres, brushing, washing, drops)
(d) Water which is suitable for ___ is called ___ water. (washing, bathing, drinking, potable, soft).
(e) Water which looks clean still has disease carrying ___and ___ impurities. (insects, microorganism, particles, dissolved, harmful).

Q. Which of the following industries plays a major role in polluting air and increasing air pollution?

3. Two non-metallic oxides A and B are produced by the burning of fossil fuels. A pollutes both air and water. B does not cause water pollution and its presence in water is essential. It causes air pollution. Identify A and B.

Join BYJU'S Learning Program