The natural resource known as black gold is
1). coal
2). lead
3). tin
4). platinum
Answer This Question with Explaination and Earn! Click Here to Know More!
1. Global warming may result in
2. The BOD values of water indicate the
5. Which of the following is a monoatomic gas?
6. The gas which is present in both the natural gas and the bio- gas is-
7. Denatured spirit is ethanol mixed with
8. The most abundant metal in the Earth's crust is
9. Question 7.32:Why is helium used in diving apparatus?
10. Ozone depletion in the?stratosphere is mainly caused by-