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ORCHIDS The International School

Air Pollution

1) How Is Ozone Layer Depletion Related to Skin Cancer?

  • A layer of ozone gas in the atmosphere protects us from the sun's harmful UV rays.
  • However, the ozone layer is affected by the gases released due to air pollution. These gases have created holes in this layer, allowing UV rays to reach the Earth's surface.
  • If any part of our body remains exposed to these UV rays for a long time it may lead to skin cancer.

2) Write the Differences Between Renewable and Non-Renewable Sources of Energy.

The differences between renewable and non-renewable sources of energy are as follows—

Renewable Sources Non-renewable Sources
Renewable sources of energy will not get depleted over time. Non-renewable sources of energy will be depleted over time.
These sources cause less or no pollution at all. These sources lead to environmental pollution.
Examples: Wind energy, solar energy, etc. Examples: Coal, natural gas, and petroleum

3) What Is Greenhouse Effect?

  • The atmosphere surrounding the Earth is a mixture of gases. Among these gases, carbon dioxide The atmosphere surrounding the Earth is a mixture of gases. Among these gases, carbon dioxide and methane can absorb the sun's heat.
  • As a result, the Earth remains warm, which is essential for the sustenance of life.
  • The greenhouse effect is trapping the sun's heat in the Earth's atmosphere due to these gases.

4) How Do Toxic Gases Affect Our Bodies?

  • Toxic gases can damage the cells or tissues of our bodies. Examples of such gases are methane, butane, propane, carbon dioxide in higher amounts, etc.
  • These gases, if they enter our body, can lead to the following effects—
    • Cancer; can be related to the lungs, skin, kidneys, or bones.
    • Respiratory disorders.
    • Birth defects in pregnant women.

5) Why Are We Advised To Minimise the Usage of Deodorants?

  • Deodorants emit a specific type of compound called chlorofluorocarbons into the environment.
  • These compounds are air pollutants and cause depletion of the ozone layer.
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