Advertisements
Advertisements
Question
Write True/False against the following statement.
Oxygen in air is an exhaustible natural resource.
Options
True
False
Advertisements
Solution
This statement is False.
Explanation:
Oxygen in air is an inexhaustible natural resource because oxygen can be used again and again.
APPEARS IN
RELATED QUESTIONS
Why are we looking at alternate sources of energy?
The fuel having the lowest calorific value is:
(a) coal
(b) wood
(c) charcoal
(d) kerosene
Most of the fuels contain carbon as one of the constituents. Name a fuel which has very high calorific value but not contain carbon.
State two important uses of natural gas
What is biomass? Give three examples of biomass.
One of the following is not required in the formation of biogas in a biogas plant. This is:
(a) cow-dung
(b) water
(c) oxygen
(d) anaerobic bacteria
The source of energy of the sun is:
(a) conversion of hydrogen gas into helium
(b) conversion of carbon fuel into carbon dioxide
(c) burning of hydrogen gas present in the sun
(d) disintegration of uranium into barium and krypton
Name five renewable and three non-renewable sources of energy.
Look at the figure where petroleum and natural gas deposits are shown. Why do we find oil layer above water layer?
Complete the crossword in figure with the help of the clues:
Across
1. Fuels obtained from dead remains of living organisms. (6, 5)
2. A process by which the various constituents of petroleum are separated. (8)
3. A porous black substance obtained from coal. (4)
4. Another name for motor fuel. (6)
Down
5. The substance obtained by carbonisation. (4)
6. Fuel for heavy motor vehicles. (6)
7. A petroleum product used for road surfacing. (7)
8. Dead remains of sea animals got converted into it. (9)
