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Air Around Us - 2 Class 1 Worksheet Science
Q1: Fill in the blanks
(i) We are surrounded by a blanket of ______.
(ii) We need ______ to breathe.
(iii) Plants need ______ to breathe.
(iv) _______ and _______ generate air.
(v) ________ is called a moving air.
Q2: True or False
(i) Moving air is called oxygen.
(ii) Gale is a natural disaster.
(iii) A cold and slow-blowing wind is called a breeze.
(iv) The ceiling fan doesn’t generate air.
(v) We can’t fill the air inside the balloon.
Q3: Name the following
(i) We are surrounded by a layer that we can’t see but only feel.
(ii) A moving air.
(iii) This gas is required for breathing.
(iv) This gas is released by us.
(v) We use this appliance in the summer season it has three propellers.
Q4: Give two examples of each
(i) Air generating machines
(ii) Gas
(iii) Air-filling objects
(iv) Air natural disasters
(v) The things that need air
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FAQs on Air Around Us - 2 Class 1 Worksheet Science
| 1. What is air pollution? |  |
Ans. Air pollution refers to the presence of harmful substances, such as gases, particles, and chemicals, in the air that can have negative effects on human health, the environment, and other living organisms. It is primarily caused by human activities, such as industrial emissions, vehicle exhaust, and burning of fossil fuels.
| 2. How does air pollution affect human health? | |
Ans. Air pollution can have several adverse effects on human health. Breathing in polluted air can lead to respiratory problems like asthma, bronchitis, and allergies. It can also worsen existing conditions, such as heart disease and lung cancer. Long-term exposure to air pollution can have serious consequences for overall well-being and life expectancy.
| 3. What are the main sources of air pollution? | |
Ans. The main sources of air pollution include industrial emissions, vehicle exhaust, burning of fossil fuels (such as coal, oil, and natural gas), agricultural activities (such as livestock and crop burning), and household activities (such as cooking with solid fuels). Natural sources, such as volcanic eruptions and wildfires, also contribute to air pollution.
| 4. How can we reduce air pollution? | |
Ans. There are several ways to reduce air pollution. Some effective measures include promoting the use of clean and renewable energy sources, such as solar and wind power, improving fuel efficiency in vehicles, implementing stricter emission standards for industries, reducing open burning of waste and crops, and promoting sustainable agricultural practices. Individuals can also contribute by conserving energy, using public transportation, and minimizing the use of polluting substances.
| 5. What are the effects of air pollution on the environment? | |
Ans. Air pollution can have significant effects on the environment. It can lead to the formation of smog, acid rain, and depletion of the ozone layer. These pollutants can harm plants, animals, and ecosystems, disrupting natural processes and biodiversity. Air pollution can also contribute to climate change by increasing the concentration of greenhouse gases in the atmosphere.
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