Answer the following questions in brief.
1. Why is soil considered an important resource? Give any three reasons.
2. Highlight any three causes of soil erosion.
3. Explain hydrological cycle with the help of a diagram.
4. How does river water get polluted? Explain.
5. Identify any three ecological problems caused by building large dams.
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- Soil is one of the most important and essential natural resources. ... Soilsboffer plants physical support, air, water, temperature moderation, nutrients, and protection from toxins. Soils provide readily available nutrients to plants and animals by converting dead organic matter into various nutrient forms.
- The agents of soil erosion are the same as the agents of all types of erosion: water, wind, ice, or gravity. Running water is the leading cause of soil erosion, because water is abundant and has a lot of power. Wind is also a leading cause of soil erosion because wind can pick up soil and blow it far away.
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