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WorksheetsAir Composition
Total questions: 10
Worksheet time: 5mins
What are the main components of air?
carbon dioxide, helium, and neon
hydrogen, sulfur, and radon
nitrogen, oxygen, and argon
methane, krypton, and xenon
What is the percentage of nitrogen in the air?
60%
90%
50%
78%
What is the percentage of oxygen in the air?
30%
21%
50%
10%
What are the other gases present in the air?
Nitrogen, Oxygen, Argon, Carbon Dioxide, Neon, Helium, and other trace gases
Water vapor, Sulfur dioxide, Methane
Krypton, Radon, Xenon
Hydrogen, Methane, Nitrous Oxide
How does the composition of air vary at different altitudes?
The composition of air varies due to changes in color and smell
The composition of air varies due to changes in the number of clouds
The composition of air remains the same at all altitudes
The composition of air varies due to changes in pressure, temperature, and humidity.
Why is carbon dioxide important in the air?
It is only important for human respiration
It helps to regulate the Earth's temperature and is essential for photosynthesis in plants.
It has no impact on the environment
It is harmful to plant growth
How does air pollution affect the composition of air?
It decreases the amount of nitrogen in the air
It has no impact on the composition of air
It changes the levels of gases and particles in the air.
It increases the oxygen levels in the air
What are the natural sources of air pollution?
Agricultural activities and pesticides
Factories and industrial plants
Natural sources such as wildfires, volcanic eruptions, and dust storms.
Car emissions and exhaust fumes
How can we maintain the composition of air?
By reducing pollution and promoting sustainable practices.
By cutting down more trees and releasing harmful chemicals into the atmosphere.
By ignoring environmental regulations and burning fossil fuels.
By increasing pollution and using unsustainable practices.
What are the effects of air composition on human health?
Respiratory problems, cardiovascular issues, and other health complications
Improved immune system
Enhanced cognitive function
Decreased risk of allergies
