Exploring Earth's Atmosphere and Ozone

Which layer of the atmosphere is closest to the Earth's surface?

• Stratosphere

• Troposphere

• Mesosphere

• Thermosphere

What is the primary method of heat transfer from the Sun to the Earth?

• Conduction

• Convection

• Radiation

• Evaporation

Which gas is most abundant in the Earth's atmosphere?

• Oxygen

• Carbon Dioxide

• Nitrogen

• Argon

What is the main function of the ozone layer?

• To trap heat

• To reflect sunlight

• To absorb ultraviolet radiation

• To produce oxygen

Which layer of the atmosphere contains the ozone layer?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

What is the process called when heat is transferred through direct contact?

• Conduction

• Convection

• Radiation

• Insulation

What is the effect of ozone depletion on human health?

• Increased respiratory diseases

• Increased skin cancer risk

• Decreased bone density

• Improved vision

Which method of heat transfer involves the movement of fluids?

• Conduction

• Convection

• Radiation

• Reflection

What percentage of the Earth's atmosphere is composed of oxygen?

• 21%

• 78%

• 1%

• 0.03%

Which atmospheric layer is known for containing weather?

• Stratosphere

• Troposphere

• Mesosphere

• Exosphere