Air Pollution
Air Pollution
Air Pollution:
When air contains enough harmful impurities which affect the well-being of the living and the nonliving, it is said to be polluted. We can say that air pollution is caused by the presence or excess of substances which change the physical, chemical or biological characteristics of air. The substances that cause pollution are called pollutants. Pollution can be caused either by natural causes or by human beings. The pollution from natural causes are usually beyond human control. We can lessen, if not totally eliminate, man-made pollutants.
Effects of Air Pollution:
1. Diseases:: Air pollution has resulted in different respiratory disorders in humans .These includes lung cancer, bronchitis, asthma, pneumonia etc.
2. Global Warming: The increase in Earth's temperature is known as global warming.Due to emission of green house gases, there is an imbalance in the gaseous composition of the air. This has led to an increase in the temperature of the earth. This has resulted in the melting of glaciers and an increase in the sea level.
In metropolitan cities like Mumbai and Kolkata, the major atmospheric pollutants are : | |||
| Right Option : A | |||
| View Explanation | |||
The disease which is caused due to air pollution is _________________. | |||
| Right Option : D | |||
| View Explanation | |||
We reduce air pollution by ________________. | |||
| Right Option : C | |||
| View Explanation | |||
Students / Parents Reviews [10]
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8thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
