1. we live on the earth along with millions of other animals,plants and micro organisms. 2. Earth is considered a storehouse of resources. 4. Movement of the earth around the sun is called the revolution, the speed of revolution of the earth is 1,07,200kms/hr 5. The earth takes 365 1/4 days to complete one revolution. 6. The earth is consists of three main layers . They are : crust, mantle and core . 7. Crust is the outer part of the earth,at where we live, it goes up to a depth of 30-100kms . And contains various kinds of rocks. 8. The upper part of the mantle is apliable layer consists of chemicals called silicates. 9. Core is composed of dense are heavy substances like iron and nickel. 10. The core can be divided into 2 sub layers ,outer core and inner core .
Answers & Comments
1. we live on the earth along with millions of other animals,plants and micro organisms.
2. Earth is considered a storehouse of resources.
4. Movement of the earth around the sun is called the revolution, the speed of revolution of the earth is 1,07,200kms/hr
5. The earth takes 365 1/4 days to complete one revolution.
6. The earth is consists of three main layers . They are : crust, mantle and core .
7. Crust is the outer part of the earth,at where we live, it goes up to a depth of 30-100kms . And contains various kinds of rocks.
8. The upper part of the mantle is apliable layer consists of chemicals called silicates.
9. Core is composed of dense are heavy substances like iron and nickel.
10. The core can be divided into 2 sub layers ,outer core and inner core .
STUDY OF EARTH IS VERY DIFFICULT.