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प्रश्न
Various materials which are obtained from nature are called natural resources. Which of the following is not a natural resource?
विकल्प
Minerals
Water
Soil
Plastic
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उत्तर
Plastic
Explanation:
Minerals, water and soil are natural resources but plastic is a man-made material. So, plastic is not a natural resource.
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संबंधित प्रश्न
Which gaseous fuel is being used increasingly in transport vehicles like cars and buses these days?
What are the disadvantages of burning fossil fuels?
The natural gas consists mainly of:
(a) methane
(b) ethane
(c) propane
(d) butane
The ultimate source of energy stored in fossil fuels is:
(a) moon
(b) earth
(c) sun
(d) sea
The pollution of air caused by burning petroleum fuels (like petrol and diesel) in vehicles can be controlled by fitting a device X in the exhaust system of vehicles.
Name the device
Why is biogas considered an ideal fuel for domestic use?
The non-renewable source of energy among the following is:
(a) hydroelectricity
(b) sewage gas
(c) natural gas
(d) gobar gas
A certain form of energy is available due to the difference in the temperature of water at the surface of the ocean and its deeper levels.
(a) Name the form of energy.
(b) Is this energy ultimately derived from the sun or not?
(c) Explain how this form of energy can be converted into electricity.
(d) What is the minimum temperature difference in water at the surface of ocean and its deeper level which is required to operate power plants based on is energy?
Who is the odd one out?
Write True/False against the following statement.
Wildlife is an exhaustible natural resource.
