Advertisements
Advertisements
Question
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)
Solution
Across
1. Fossil fuels
2. Refining
3. Coke
4. Petrol
Down
5. Coal
6. Diesel
7. Bitumen
8. Petroleum
APPEARS IN
RELATED QUESTIONS
Name any four fractions obtained from petroleum which are used as fuels.
What is meant by conventional sources of energy? Write the names of two conventional sources of energy.
Which of the following is not produced by the burning of fossil fuels?
(a) nitrogen oxides
(b) sulphur oxides
(c) sodium oxides
(d) carbon oxides
Fossil fuels are energy rich compounds of an element X which were originally made by the plants with help of sun's energy.
Name another element which is usually found in combination with X in fossil fuels.
State whether the following statement is true or false:
Tidal energy is one of the forms in which solar energy manifests itself in oceans.
Fill in the blank
Solar cells use the power supplied by the ______.
State whether the following is True or False.
China, the USA, and Spain are major producers of wind energy.
Name two forms of sea energy.
Choose the odd one:
What is non-renewable resources?
