Unit 7: Section 1-Climate Change

What is the primary cause of climate change in recent times?

• Solar flares
• Human activities
• Volcanic eruptions
• Changes in Earth's orbit

Which greenhouse gas is primarily responsible for the greenhouse effect?

• Oxygen
• Carbon dioxide
• Nitrous oxide
• Argon

What is the main difference between an ice age and an interglacial period?

• Ice ages are warmer than interglacial periods
• Ice ages have higher levels of carbon dioxide
• Ice ages are characterized by colder temperatures and glacial expansion
• Interglacial periods have more volcanic activity

Which human activity contributes the most to the increase in greenhouse gases?

• Deforestation
• Agriculture
• Fossil fuel use
• Wind power generation

What is the process called when human activities release excess carbon dioxide into the atmosphere?

• Photosynthesis
• Greenhouse effect
• Carbon capture
• Acid rain

What is the main reason why greenhouse gases trap heat in the Earth’s atmosphere?

• They absorb and radiate infrared radiation
• They reflect sunlight
• They block UV radiation
• They enhance cloud formation

Which gas is released from permafrost melting in the Arctic?

• Nitrous oxide
• Oxygen
• Methane
• Argon

Which of the following gases is a major component of the greenhouse effect?

• Carbon dioxide
• Oxygen
• Nitrogen
• Hydrogen

What is the main consequence of rising global temperatures?

• Increased biodiversity
• Melting of polar ice caps
• Decrease in ocean levels
• Growth of glaciers

What is the primary cause of the increase in global surface temperatures over the past century?

• Increased volcanic activity
• Changes in Earth's orbit
• Human-driven carbon emissions
• Solar radiation changes