Fill in the blanks:
1. All living things are ........ resources.
2. Collection of resources directly from nature is called ........
3. Natural resources when processed to meet man’s needs are called .......
4. Solar Panels generate .......
5. Silicon , extracted from ............ is used in making pv cells
6. All resource have ..........
7. Wind energy is a ........... resource 8. Man’s skills and ideas are the basic requirements for .......... activities.
9. A plate that can absorb solar energy is known as .........
10. Areas of ocean that does not belong to any country is called ...........
