QNo 2:Answer the short questions. /20
1) What is the universe?
2) List the planets of the solar system?
3) Define the terms ‘rotation’ and revolution?
4) Define a glob and map?
5) What is a grid reference?
6) Name different types of north?
7) Define plate tectonics?
8) What is an ecosystem?
9) Name four natural spheres of the earth?
10) List the sources of fresh water?