write a note on how forests inflence the quality of our area , soil and water resources
Answers
Answer:
Role of forest in influencing the quality of – Air : (i) It helps in purifying the air by adding oxygen into it. (ii) It takes carbon-dioxide gas during photosynthesis thus green-house effect is controlled. (iii )Transpiration helps in the formation of clouds and thus, it maintains the temperature of surrounding area, giving cooling effect. Soil : (i) Plants in forest hold the soil. Thereby preventing soil erosion. (ii) It holds the soil which helps in increasing the underground water level. (iii) Adds nutrients to the soil due to lot of vegetation present in forest gets decomposed. Water : Forest helps in bringing rain and increasing the level of water in the underground and water bodies.
hope it helps you.
Explanation:
Answer:
✯Role of forest in influencing the quality of
☆Air:
1. It takes carbon dioxide gas during photosynthesis thus green-house effect is controlled.
☆Soil:
1. Plants in forest hold the soil. Thereby preventing soil erosion.
2. Add nutrients to the soil due to lot of vegetation present in forest get decomposed.
☆Water:
1. Forest helps in bringing rain and increasing the level of water in the underground.
Explanation:
◉LET'S EXPLORE MORE
✯What is Air
Air is a mixture of gases. The major constituents of air are nitrogen, oxygen, carbon dioxide and argon.
✯Components of air
☆Water vapor:
We know that water present in oceans and rivers evaporates during summer and escapes into the air. Thus water vapor is one of the components of the air. It occupies very less percentage of earth’s atmosphere.
☆Oxygen:
Have you ever tried to burn a candle in absence of air? If you would try you would notice that it doesn’t burn in absence of air. Air contains some matter which supports combustion. This substance is oxygen. Oxygen is one of the major components of air around us. Air comprises almost 21% oxygen.
☆Nitrogen:
When you blow over a burning candle you notice that it extinguishes. This means air contains incombustible gases (gases which don’t support combustion) too. This is majorly due to the presence of nitrogen. Nitrogen occupies nearly 78% of earth’s atmosphere and is the most abundant gas on our planet.
☆Carbon dioxide:
Carbon dioxide is mainly produced due to respiration by plants and animals or burning of fuel. It occupies 0.038% of the earth’s atmosphere. Its occupancy keeps on changing from one place to another in our atmosphere.
☆Smoke and dust particles:
Smoke is present in our atmosphere due to the burning of fuels. Its occupancy varies from place to place. It is a mixture of gases and is often harmful. Apart from these, dust particles are also present in our atmosphere which we observe when we see a ray of light in a dark room. Smoke and dust particles occupy less than 1% of earth’s atmosphere.
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✯What is soil?
The soil is defined as the upper layer of earth composed of a mixture of organic remains, clay and rock materials on which plants grow. It is also regarded as one of the major natural resources. Soil supports plant life and growth.
Physical Properties of soil
✯Soil texture:
Soil texture defines the proportion in which the soil separates to make the mineral component of the soil. These separates can be classified as sand, clay, and silt. Sand and silt are of no importance to the soil as they don’t contribute to the soil’s ability to restore water or nutrients. Clay is an active part of soil texture as clay has a small size and it has a large amount of surface area per unit mass and it helps in storing ions and water.
✯Soil color
Basically soil color (brown, yellow, red) depends on oxidized or ferric iron compounds. Darker the color of the soil, the more organic content it contains. The higher the organic content, higher soil temperature as they absorb more heat due to the darker color.
✯Soil Horizon:
The soil is divided vertically into different horizons from top to bottom namely:
☆A-Horizon:
This is the uppermost layer of soil and also called as topsoil. This layer is rich in humus and minerals and holds most of the water as compared to other layers. This layer consists of sand, silt, and clay. It is also a home to many living organisms like snakes, earthworms, etc.
☆B-Horizon:
This is the second layer from the top and is little rich in humus and it supports moisture. This layer consists of silt, clay, weathered rocks and some nutrients. Minerals are more in this layer as compared to the top layer.
☆C-Horizon:
This layer consists of small pieces of rocks broken down due to weathering.
Bed Rock: This layer is the last layer and consists of layers of solid unweathered rock.
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✯What is Water?
Water is one of the natural resources, which are found in an adequate amount. It is an essential source for the existence of life on the planet earth. It is widely used for various purposes such as drinking, washing, bathing, cleaning, cooking, irrigation, and other industrial and domestic uses.
✯Sources of Water
There are various sources of water. About 97% of the water on the Earth’s surface is covered with water. The three main sources of water are:
☆Rainwater
☆Groundwater
- This includes water bodies like Wells and Springs.
☆Surface water
- This includes different water bodies like Sea, Oceans, Reservoirs, Rivers, Streams, Ponds, Lakes and Tanks.