Advertisements
Advertisements
Question
Look at the figure where petroleum and natural gas deposits are shown. Why do we find oil layer above water layer?
Advertisements
Solution
Oil is lighter than water, hence floats over it.
APPEARS IN
RELATED QUESTIONS
Fill in the following blank with a suitable word:
The amount of heat produce by burning a unit mass of a fuel completely is known as its ............ value.
Classify the following
Coal, Wind, Tides, Petroleum,Wood, Natural gas
What is the basis of above classification?
State two important uses of natural gas
Explain why, natural gas is considered to be a good fuel.
What are the raw materials used for making biogas?
Most of the sources of energy that we sue represent stored solar energy. Which of the following is not ultimately derived from the sun's energy?
(a) wind energy
(b) geothermal energy
(c) fossil fuels
(d) biomass
What type of nuclear reaction is responsible for the liberation of energy:
in a nuclear reactor?
Why is there a need for harnessing non-conventional sources of energy? How can energy be harnessed from the sea in different ways?
Air is a natural resource and cannot be exhausted by human activities. It is known as inexhaustible natural resource. Which of the following is another inexhaustible natural resource?
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)
