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✅ In this video,
✔️ Class: 9th
✔️ Subject: Biology
✔️ Chapter: Natural Resources
✔️ Topic Name: Soil Pollution
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00:00 Introduction: Soil Pollution
00:20 Soil Pollution?
15:46 Website Overview
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Points covered in this video:-
Soil pollution - undesirable change in soil quality.
Removal of useful substances and addition of other substances affects fertility.
Thus cause soil pollution.
Soil erosion:
Removal and transportation of the top layer of soil from its original position.
By strong winds and water.
It occurs in bare areas i.e. without plant cover.
Roots hold the soil tightly.
Thus, roots of plants have an important role in preventing soil erosion. .
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