Question

What is the role of plants in controlling air pollution and soil erosion.

Answer 1

Hint: Plants produce oxygen through photosynthesis and hence plants are very necessary to maintain the balance between oxygen and carbon dioxide in the environment.

Complete answer:
Plants absorb carbon dioxide and produce oxygen through photosynthesis which helps in reducing the carbon dioxide content in the environment which is a very harmful pollutant.
The plants can absorb minute pollutants through their leaves and plants are also responsible for increasing the humidity in the environment by transpiration of water vapors thus improving the air quality and leads to a clean and green environment.
Usually, urban areas have very high pollution due to modern technologies and industrialization but these areas have very few plants that lead to rising pollution day by day.

According to research, the pollution around industries and urban areas can be controlled easily by planting more trees in such areas.
Soil erosion is one of the biggest problems that reduce the organic content and quality of the soil.
The soil erosion can be controlled by planting more trees as the root of plants prevents washing away of soil by keeping the soil undamaged by making the soil harder by absorbing some water from the soil.

Note: Burning of fossil fuels, urbanization, etc has resulted in so much pollution, it is very necessary to control this pollution which is already causing harm to the health of plants and animals. One of the most effective methods to control pollution is to plant more trees and encourage other people to do the same.