Why is there Life on Earth?

What is the main reason Earth can support life?

• The presence of water

• The Sun

• Earth's magnetic field

• The ozone layer

Tags

NGSS.MS-ESS2-4

Which gas is essential for most creatures on Earth?

• Helium

• Oxygen

• Nitrogen

• Carbon dioxide

Tags

NGSS.MS-LS2-3

What process do plants use to produce oxygen?

• Respiration

• Photosynthesis

• Evaporation

• Condensation

Tags

NGSS.MS-LS1-6

What protects Earth from harmful UV rays?

• The atmosphere

• The ocean

• The magnetic field

• The ozone layer

What is the role of Earth's magnetic field?

• To create gravity

• To produce light

• To provide oxygen

• To repel electromagnetic radiation

Why is water important for life on Earth?

• It is a source of light

• It contains oxygen needed for life

• It is a source of carbon dioxide

• It provides heat

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-1

NGSS.MS-LS2-3

What is the effect of Earth's rotation on its ability to support life?

• It causes extreme temperatures

• It provides regular sunlight

• It reduces oxygen levels

• It increases gravity

Tags

NGSS.MS-ESS2-6

What is the harmful chemical that can damage the ozone layer?

• Carbon dioxide

• Chlorofluorocarbons (CFCs)

• Methane

• Nitrous oxide