Answer these questions.
1. What are the main types of relief features on the Earth?
3. Name at least one important feature in each part of a river valley,
2. How are mountains useful to human beings?
4. Why are lowlands thickly populated?
5. What is the importance of plateaus?
6. How are plains formed?
Answers
ANswer :
1. What are the main types of relief features on the Earth?
➳ The Major types of relief on the earth are Mountains, Plateaus, and Plains.
2. How are mountains useful to human beings?
➳ Mountains are very useful to humans.
- The mountains are a huge storehouse of water.
- Reservoirs are made and the water is utilized for the use of people.
- Mountain provides an idyllic site for tourists/sightseers.
- Several sports like paragliding, hang gliding, river rafting, and skiing are done in the mountains.
- The forests in the mountains provide shelter, fuel, and other products like gum, raisins, etc.
3. Name at least one important feature in each part of a river valley,
➳ One important feature of Rain Valley is :
- The river valleys are ideal for the cultivation of crops.
4. Why are lowlands thickly populated?
➳ The lowlands are thickly populated because the soil in lowlands Is very fertile and fertile soil provides an adequate place for cultivating crops.
5. What is the importance of plateaus?
➳ Plateaus are rich in mineral deposits. Because of this feature, many plateaus are present in plateaus.
6. How are plains formed?
➳ Plains are formed by rivers, deposited by water, ice, wind, or formed by erosion by these factors from hills and/or mountains.
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Answer:
→1. Depending up on the elevation and shape landforms or relief feature are called mountains, plateaus and plains.
→2. The snow and the glacier from the mountains supply water to the rivers and lakes. The water is used for irrigation, generation of electricity, drinking, food, and other purposes.
→3. Valleys are defined as the low lying areas of land between hills or mountains, normally with a river or some sort of water course running through them. River valleys are commonly V-shaped, narrow and steeper near to the river's source but become U-shaped, wide and flatter as the river works its way down to sea level.
→4. Plains are thickly populated because the soils are very fertile and fertile soils provide a good place for cultivating crops. Also, the plains are surrounded by rivers and rivers are quite, quite useful.
→5. Plateaus are important because of the following reasons: Plateaus are storehouses of minerals.
→6. Plains are one of the major landforms on earth, where they are present on all continents, and would cover more than one-third of the world's land area.