What are the environmental consequences of the increasing demand for energy? What steps would you suggest to reduce energy consumption?
Due to Industrialisation the demand for energy increases . Fossil fuels are easily accessible sources of energy that fulfil this demand. The increased use of fossil fuels has an adverse effect on the environment. Large consumption of fossil fuels increases the greenhouse gas in the atmosphere, resulting in global warming and a rise in the sea level.
It is not possible to reduce the consumption of fossil fuels. However, some preventive measures can be taken such as using electrical appliances wisely and not wasting electricity. Unnecessary usage of water should be avoided. Public transport systems with mass transit must be adopted on a large scale. These small steps may help in reducing the consumption of natural resources and conserving them.
You are given kerosene, turpentine and water. In which of these does the light travel fastest? Use the information given in Table 10.3.
| Material medium |
Refractive index |
Material medium |
Refractive index |
| Air | 1.0003 | Canada Balsam |
1.53 |
| Ice | 1.31 | ||
| Water | 1.33 | Rock salt | 1.54 |
| Alcohol | 1.36 | ||
| Kerosene | 1.44 | Carbon disulphide |
1.63 |
| Fused quartz |
1.46 | ||
| Turpentine oil |
1.47 | Ruby | 1.71 |
| Benzene | 1.50 | Sapphire | 1.77 |
| Crown glass |
1.52 | Diamond | 2.42 |
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Welcome to the NCERT Solutions for Class 10 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 6 , Question 10: What are the environmental consequences of the increasing demand for energy? What steps would you su....
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