Question

what is earth what is usefull in it​

Answer 1

Answer:

Geology is the study of the Earth, the materials of which it is made, the structure of those materials, and the processes acting upon them. It includes the study of organisms that have inhabited our planet.

Answer 2

Answer:

Earth is the third planet from the Sun and the fifth largest planet in the Solar System with the highest density. It is currently the only known location where life is present.

Nothing is more important to us on Earth than the Sun. Without the Sun's heat and light, theEarth would be a lifeless ball of ice-coated rock. The Sun warms our seas, stirs our atmosphere, generates our weather patterns, and gives energy to the growing green plants that provide the food and oxygen for life onEarth.