Question 1

Question 3How are smoking zones useful in prevention of air pollution?

Accepted Answer

Smoking zones is designated area in which smoking is permitted. It helps to keep the work place and public place air clean and protects people from effects of passive smoking.

Question 2

Question 4Explain the term organic farming. How does organic farming help in saving the soil quality?

Accepted Answer

Organic farming is a farming method that involves growing and nurturing crops without the use of synthetic based fertilizers and pesticides. This process involves the use of biological materials, avoiding synthetic substances to maintain soil fertility and ecological balance thereby minimising pollution and wastage.Organic farming help in saving the soil quality in following ways:Natural balance of soil is maintained. Chemical fertilizers change the balance of soil.Soil texture is improved with use of FYM and compost.

Question 3

Question 5State any three characteristic features of organic farming.

Accepted Answer

Three characteristic features of organic farming are:Indirect provision of crop nutrients using soil micro-organisms.Nitrogen fixation in soils using legumes.Weed and pest control based on crop rotation, biological diversity, natural predators and organic manures.

Question 4

Question 1The Indian government is planning to construct electric vehicle ready highways on the Golden Quadrilateral to facilitate the deployment of electric buses across the country. (Jan 10, 2024, Times of India)What according to you may be the reason for such planning?Do you think that this sort of planning can reduce environmental pollution? Justify your answer.

Accepted Answer

The main reason behind this plan is to lower the country's dependence on fossil fuels and to reduce harmful emissions from vehicles. Promoting electric buses along major routes like the Golden Quadrilateral is a step toward cleaner and more sustainable transportation.Yes, this initiative can significantly help in reducing environmental pollution. Unlike traditional fuel-powered vehicles, electric buses do not emit smoke or carbon dioxide, which are major contributors to air pollution. By replacing diesel or petrol buses with electric ones, the overall emission of greenhouse gases will decrease, leading to cleaner air and a healthier environment.

Question 5

Question 2The food processing industries and horticulture department of West Bengal has asked the rural agricultural farms to begin organic farming and assured them of technical assistance as well as help in promotion and marketing. (4th May, 2017, The Economic Times.)Why has government taken such initiative?

Accepted Answer

The government supports Organic farming as it promotes sustainable cultivation. It is helpful in many ways:Protecting soil quality.Promotes nitrogen fixation in soil.Risk of biomagnifications can be reduced.Indirect provision of crop nutrients using soil micro-organisms.Care for the larger environment and conservation of natural habitats and wildlife.

Pollution — Preventive Measures

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