Class 7 Exam > Class 7 Videos > Social Studies (SST) Class 7 > Air (Overview)
Air (Overview) Video Lecture | Social Studies (SST) Class 7
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FAQs on Air (Overview) Video Lecture - Social Studies (SST) Class 7
| 1. What is air pollution? |  |
Air pollution refers to the presence of harmful substances in the air that can be detrimental to human health and the environment. These substances can include pollutants such as gases, particulate matter, and biological molecules.
| 2. What are the main sources of air pollution? | |
The main sources of air pollution include industrial activities, vehicle emissions, burning of fossil fuels, agricultural practices, and natural events such as wildfires and volcanic eruptions. These sources release pollutants into the atmosphere, contributing to air pollution.
| 3. How does air pollution affect human health? | |
Air pollution can have various adverse effects on human health. Breathing in polluted air can lead to respiratory problems, such as asthma and chronic obstructive pulmonary disease (COPD). It can also increase the risk of cardiovascular diseases, lung cancer, and other respiratory infections.
| 4. What are the environmental impacts of air pollution? | |
Air pollution can have significant environmental impacts. It can contribute to the formation of smog, acid rain, and depletion of the ozone layer. It can also harm ecosystems, affecting plants, animals, and aquatic life. Additionally, air pollution can lead to climate change, as certain pollutants act as greenhouse gases.
| 5. How can we reduce air pollution? | |
There are several ways to reduce air pollution. Some effective measures include promoting the use of renewable energy sources, such as solar and wind power, to reduce reliance on fossil fuels. Implementing stricter emission standards for vehicles and industrial activities, as well as promoting sustainable transportation options like walking, cycling, and public transport, can also help reduce air pollution. Additionally, individuals can contribute by practicing energy conservation, using energy-efficient appliances, and reducing personal vehicle use whenever possible.
About this Video
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Nov 21, 2024 Last updated |
Video Description: Air (Overview) for Class 7 2024 is part of Social Studies (SST) Class 7 preparation.
The notes and questions for Air (Overview) have been prepared according to the Class 7 exam syllabus.
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Find important definitions, questions, notes, meanings, examples, exercises and tests below for Air (Overview).
Introduction of Air (Overview) in English is available as part of our Social Studies (SST) Class 7 for Class 7 & Air (Overview) in
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Video Lecture & Questions for Air (Overview) Video Lecture | Social Studies (SST) Class 7 - Class 7 full syllabus preparation | Free video for Class 7 exam to prepare for Social Studies (SST) Class 7.
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