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प्रश्न
What are the different purposes for which fuels such as petrol, diesel, kerosene, natural gas, coal, and wood are used?
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उत्तर
Petrol and diesel are used as fuel in vehicles used for transport. Two wheelers. cars, trucks, and aeroplanes run on these fuels. Kerosene. cooking gas (LPG) and wood are used as fuels for cooking and other domestic uses. Coal is used for electricity generation and also in industrial processes. Diesel is also used to run engines and machines in factories.
संबंधित प्रश्न
You being an environmentalist are interested in contributing towards the conservation of natural resources. List four activities that you can do on your own.
Fill in the following blank with suitable word :
The science that deals with the inter-relationships of living things with one another and their environment is called...........
Write one or two word for the following statement/definition :
The physical and biological world where we live in
What is meant by 'environment'?
The compound obtained on reaction of iron with steam is/are:
Which one of the places you visited shows greater biodiversity?
Give reason.
It is important to conserve the living components of the environment.
Classify the following as natural or man-made.
horse.
Classify the following as natural or man-made.
stone.
Classify the following as natural or man-made.
water
Classify the following as natural or man-made.
cottonwool
Classify the following as natural or man-made.
brick
Take a square paper. Fold its diagonals. Draw three lines in three triangles as shown in the picture.
Cut from the edge of the diagonal to the center as shown in the picture.
If you fold this triangle and paste it behind the third triangle you get a pyramidal shape.
In one of the triangles, draw images of each of the organisms in the different levels.
In another triangle write the names of the organisms. In the last triangle, write the energy level of the organism. Have a look at the following example. You must come up with different organisms!.
Select the mis-matched pair in the following and correct it.
