3. When the rocks breaks into small pieces
like this it is called weathering.
WEATHRING MAINLY THREE TYPE
1.Mechanical weathering
2.Chemical weathering
3.Biological weathering
4. Changes in temperature and the
freezing of the water in the cracks of
the rocks cause mechanical weathering.
5. At day time the minerals
contained in the rocks get heated, so
they expand.
Freezing of water in the cracks in rocks.
The water contained
in the rocks from in to ice at night when
the temperature goes below the
freezing point.
6. Oxygen, nitrogen, carbon
dioxide in the atmosphere dissolve in the
rain water. They causes rocks of different
nature to disintegration.
7. The roots of trees, animals that
burrows man etc breaks the rocks. Such
kind known as biological weathering.
8. All the part of the earth that
created due to the endogenic force, are
liable to face some from of weathering
from exogenic force.
