Question

1 . State three features which make the earth the unique planet.

2. Mention three main characteristics of a planet .
3. Give a brief description on the phases of moon with the help of a diagram.
4. Write a short note on the other celestial bodies (asteroids,meteoroids and comets) in the solar system.​

Answer 1

Answer:

In nuclear physics and nuclear chemistry, nuclear fission is a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into two or more smaller, lighter nuclei.