Class 1 Exam > Class 1 Notes > Social Science for Class 1 > Worksheet: Air & Water - 2
Air and Water - 2 Class 1 Worksheet EVS
Q1: Multiple Choice Questions (MCQs).
(i) What do we need to breathe and live?
(a) Food
(b) Air
(c) Water
(d) Sunlight
(ii) Which of the following is a source of water?
(a) Sun
(b) Moon
(c) Ocean
(d) Cloud
(iii) Which of these is NOT a way to keep the air clean?
(a) Planting trees
(b) Throwing garbage everywhere
(c) Using dustbins
(d) Using fewer vehicles
(iv) Rain comes from:
(a) Clouds
(b) Sun
(c) Stars
(d) Moon
(v) Air takes up space and has:
(a) Weight
(b) Color
(c) Smell
(d) Taste
Q2: True or False
(i) Air is important for living things.
(ii) All the water on Earth is salty.
(iii) We should throw garbage anywhere we like.
(iv) Fish can live only in saltwater.
(v) We need air only at night.
Q3: Fill in the Blanks.
(i) We breathe in _______.
(ii) _______ is a source of freshwater.
(iii) We should use dustbins to keep the _______ clean.
(iv) Water vapor in the air forms _______.
(v) We need _______ to live and grow.
Q4: Answer the Following.
(i) Why do we need air?
(ii) Name one source of freshwater.
(iii) How can we keep the air clean?
(iv) What is rain?
(v) Why is the sun important?
The document Air and Water - 2 Class 1 Worksheet EVS is a part of the Class 1 Course Social Science for Class 1.
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FAQs on Air and Water - 2 Class 1 Worksheet EVS
| 1. What is air pollution? |  |
Ans. Air pollution refers to the presence of harmful substances in the air that can be detrimental to human health and the environment. These substances, known as pollutants, can be gases, liquids, or solid particles, and they are released from various sources such as industrial emissions, vehicle exhaust, and burning of fossil fuels.
| 2. How does air pollution impact human health? | |
Ans. Air pollution can have severe health effects on humans. When we breathe in polluted air, it can irritate our respiratory system and cause respiratory problems such as coughing, wheezing, and shortness of breath. Prolonged exposure to air pollution can also lead to more serious health issues like asthma, lung cancer, and cardiovascular diseases.
| 3. What are the main causes of water pollution? | |
Ans. Water pollution occurs when harmful substances contaminate bodies of water such as rivers, lakes, and oceans. The main causes of water pollution include industrial waste, sewage and wastewater discharge, agricultural runoff, oil spills, and improper disposal of chemicals and other pollutants.
| 4. How does water pollution affect aquatic life? | |
Ans. Water pollution can have devastating effects on aquatic life. Pollutants in the water can disrupt the natural balance of ecosystems, leading to the decline or loss of certain species. The presence of toxic substances can also impair the reproductive and growth capabilities of aquatic organisms, and their accumulation in the food chain can pose risks to animals and humans who rely on these ecosystems for their survival.
| 5. What are the solutions to reduce air and water pollution? | |
Ans. There are several ways to reduce air and water pollution. Some solutions include implementing stricter regulations on industrial emissions, promoting the use of renewable energy sources, improving waste management practices, and educating the public about the importance of conservation and proper disposal of pollutants. Additionally, individuals can contribute by conserving water, reducing their carbon footprint, and supporting initiatives that aim to protect and restore natural water sources.
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Dec 18, 2024 Last updated |
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