11. The components of LPG are ..............................
12. A renewable source of energy is
13. What is troposphere?
14. The capacity to do work is termed as
15. Grassland of USA is referred to as
16. What is deforestation?
17. Which among the following result in the formation of soil?
18. The resources that can be replaced by natural ecological cycle is called
19. Green revolution is associated with ..............................
20. Smog is a mixture of
USA - United States of America Canada United Kingdom Australia New Zealand South America Brazil Portugal England Scotland Norway Ireland Denmark France Spain Poland Netherland Germany Sweden South Africa Ghana Tanzania Nigeria Kenya Ethiopia Zambia Singapore Malaysia India Pakistan Nepal Taiwan Philippines Libya Cambodia Hong Kong China UAE - Saudi Arabia Qatar Oman Kuwait Bahrain Dubai Israil and many more....