Weathering of rocks and erosion — task. Science CBSE, Class 7 New.

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Select the right option:

1. Which of the following is the best method to reduce soil erosion?

Removing all grass
Digging deeper trenches everywhere
Cutting down forests
Planting more trees

2. Why are weathering and erosion called slow natural changes?

They take a very long time to produce noticeable changes in nature.
They happen only during earthquakes.
They happen only during the night.
They occur only in deserts.

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