Advertisements
Advertisements
प्रश्न
What are the disadvantages of burning fossil fuels?
उत्तर
The disadvantages of burning fossil fuels are as follows.
(a) The burning of fossil fuels produces gases such as sulphur dioxide and nitrogen oxide, which cause acid rain, damaging trees and land and affecting aquatic life.
(b) It produces carbon dioxide, which affects all kinds of organisms.
(c) It produces smoke and ashes, which cause air pollution.
APPEARS IN
संबंधित प्रश्न
State any four characteristics of a good source of energy.
An examples of a renewable source of energy is:
(a) petrol
(b) natural gas
(c) biogas
(d) kerosene
What should be the minimum wind speed for the satisfactory working of a wind-powered electric generator?
Suggest a safe and efficient method for the disposal of biowastes and sewage materials. How is this method advantageous to us?
The major component of biogas is:
(a) hydrogen
(b) butane
(c) hydrogen sulphide
(d) methane
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
Fill in the blank
Solar cells use the power supplied by the ______.
Can you tell?
Why should we maximise the use of non-conventional energy resources?
Choose the incorrect statement regarding wind power
Sunlight and air are inexhaustible natural resources. Comment.
