Air Around Us By BKBPS STUD

What are the three main properties of air?

• Taste, sound, and texture

• Pressure, temperature, and humidity

• Density, volume, and color

• Color, weight, and smell

How does air pressure change with altitude?

• Air pressure decreases

• Air pressure fluctuates

• Air pressure increases

• Air pressure remains constant

What is the composition of dry air in terms of percentage?

• 78% nitrogen, 21% oxygen, 1% other gases

• 50% nitrogen, 50% oxygen, 0% other gases

• 80% nitrogen, 20% oxygen, 0% other gases

• 75% nitrogen, 25% oxygen, 0% other gases

What is the role of air in the water cycle?

• Creates waves in the ocean

• Facilitates the processes of evaporation, condensation, and precipitation

• Causes water to freeze

• Prevents the water cycle from occurring

How does air temperature affect its density?

• As air temperature increases, its density remains the same.

• Air temperature has no effect on its density.

• As air temperature increases, its density decreases.

• As air temperature increases, its density increases.

What is the significance of air resistance in everyday life?

• Air resistance has no impact on the motion of objects

• Air resistance only affects objects in outer space

• Air resistance affects the motion of objects by slowing them down as they move through the air.

• Air resistance causes objects to move faster

Explain the concept of buoyancy in relation to air.

• Buoyancy in relation to air is the upward force exerted on an object immersed in air.

• Buoyancy is the force that pulls objects down in air

• Buoyancy has no effect on objects in air

• Buoyancy is the downward force exerted on an object immersed in air

How does air pollution affect the quality of air around us?

• It has no impact on the quality of air

• It makes the air smell better

• It introduces harmful chemicals and particles into the atmosphere.

• It reduces the amount of harmful chemicals in the air

What are the different layers of the Earth's atmosphere?

• Troposphere, Stratosphere, Mesosphere, Thermosphere, and Exosphere

• Cloudosphere, Ozoneosphere, Ionosphere, Magnetosphere

• Earth's Layer, Sky Layer, Space Layer, Universe Layer

• Atmosphere, Lithosphere, Hydrosphere, Biosphere

Discuss the impact of air quality on human health.

• Air quality has no impact on human health

• Air quality only affects plants, not humans

• Air quality can improve human health by providing fresh air

• Air quality can impact human health by causing respiratory problems, cardiovascular issues, and other health complications.