Air

Air has mass and ..................

• occupies space 

• do not occupies space 

With it, we feel the air

• sun

• rain

• wind

Which two gases make the bulk of the atmosphere?

• Argon, Hydrogen

• Ozone, Oxygen

• Carbon dioxide, Helium

• Oxygen, Nitrogen

• Carbon dioxide, Ozone

Our earth is surrounded by a huge blanket of

• AIR

• SAND

• PLANTS

• WATER

What is the primary component of Earth's atmosphere?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Argon

Which layer of the atmosphere is closest to Earth?

• Stratosphere

• Mesosphere

• Troposphere

• Thermosphere

What is the process by which plants release oxygen into the air?

• Photosynthesis

• Respiration

• Transpiration

• Decomposition

Which gas is responsible for the greenhouse effect?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Helium

What is the term for the movement of air from high pressure to low pressure?

• Convection

• Conduction

• Radiation

• Wind

Which of the following is a human activity that increases air pollution?

• Planting trees

• Recycling

• Burning fossil fuels

• Composting