Energy Resources Quiz

1. Which layer is the thinnest?

• Crust
• Mantle
• Outer Core
• Inner Core

2. Which layer is the thickest?

• Crust
• Mantle
• Outer Core
• Inner Core

1. The rock cycle is Earth's process of ______________.

• changing rocks to different types
• smoothing bumpy rocks
• destroying rocks

2. Identify the THREE types of rocks.

• Sedimentary
• Metamorphic
• Clay-based
• Igneous
• Gravelly

What makes soil considered 'healthy'?

• Only organic material from living things
• Only sediment from rocks and minerals
• A mixture of sediment and organic material
• Large amounts of synthetic fertilizers

What percentage of Earth is covered by water?

• 50%
• 60%
• 70%
• 80%

What is the main component of clean air?

• Carbon Dioxide
• Oxygen
• Nitrogen
• Argon

What is air pollution?

• A mixture of clean air and water
• Substances that contaminate Earth's air
• The absence of any gases in the atmosphere
• Only smoke from factories

Which of the following is a point source of air pollution?

• Vehicle emissions
• Factory smokestacks
• Dust from construction sites
• Wildfires

What is smog?

• A type of clean air
• A mixture of smoke and fog
• A gas released by plants
• A weather phenomenon