Revision of the earth

05.06.2020
07:32:23
Dear students, good morning
Today's revision topic : weathering
Pg.no :114 & 115
The important points are
1. Rocks are worn away by weathering
2.weatherimg can be chemical, physical or biotic.
3. Weathering is caused by rainwater , changes in temperature , rivers ,wind and plants.
For better understanding of concepts watch the below videos