Air Facts

What is the composition of air?

• Nitrogen, Oxygen, Argon, Carbon Dioxide, Trace Gases

• Hydrogen, Helium, Neon, Xenon, Krypton

• Methane, Sulfur Dioxide, Water Vapor, Nitrous Oxide, Radon

• Carbon Monoxide, Hydrogen Sulfide, Ozone, Ammonia, Methanol

Which gas makes up the majority of Earth's atmosphere?

• Oxygen

• Nitrogen

• Helium

• Carbon dioxide

What is the importance of air for living organisms?

• Air is only important for plants, not for animals

• Living organisms can survive without air

• Air is harmful to living organisms

• Air is essential for respiration, energy production, temperature regulation, and waste removal in living organisms.

How does air pressure change with altitude?

• Air pressure decreases with altitude.

• Air pressure fluctuates randomly with altitude.

• Air pressure remains constant with altitude.

• Air pressure increases with altitude.

What is the role of air in the water cycle?

• Air is responsible for groundwater formation in the water cycle.

• Air creates clouds in the water cycle.

• Air causes precipitation in the water cycle.

• Air carries water vapor through evaporation and transpiration in the water cycle.

What are some common air pollutants?

• methane

• lead

• ozone

• carbon monoxide, sulfur dioxide, nitrogen oxides, particulate matter, volatile organic compounds

How does air temperature affect air density?

• Air temperature causes air density to increase as temperature increases.

• Air temperature causes air density to remain constant regardless of temperature changes.

• Air temperature has no impact on air density.

• Air temperature affects air density by causing it to decrease as temperature increases.

What is the significance of air quality index (AQI)?

• The Air Quality Index (AQI) measures the temperature of the air

• AQI is used to predict the stock market trends

• The significance of the Air Quality Index (AQI) lies in its ability to inform individuals about the level of air pollution and its potential health impacts, enabling them to take appropriate actions to safeguard their well-being.

• The significance of AQI is to determine the best time for outdoor activities

Explain the concept of wind and how it is formed.

• Wind is caused by the rotation of the Earth

• Wind is formed due to the movement of air from areas of high pressure to areas of low pressure caused by the uneven heating of the Earth's surface by the sun.

• Wind is a result of the moon's gravitational pull

• Wind is formed by the movement of water vapor in the atmosphere

How does air help in the process of respiration?

• Air helps in respiration by causing suffocation.

• Air helps in respiration by blocking the airways.

• Air helps in respiration by providing carbon dioxide for cellular respiration.

• Air helps in respiration by providing oxygen necessary for cellular respiration.