The type of rock that forms when melted rock cools and hardens

• igneous
• humus
• mineral 
• erosion

The breaking down of Earth's surface into pieces

• weathering
• mineral 
• humus
• erosion

3 The process of moving sediment to other places

• mineral
• weathering
• erosion
• humus

 Resource that can be replaced in a human lifetime

• nonrenewable resource
• fossil fuels
• energy resource
• renewable resource

Resource that take millions of years to form

•  conservation
• fossil fuels
• mineral resource
• non renewable resources

The sides of the Grand Canyon show many different layers of rocks. Which statement describes how the Grand Canyon was formed

• The canyon once had a waterfall.
•  Big rainstorms washed rocks out of the canyon.
• The canyon was formed from rocks that came from other places.
•  A flowing river river cut into the rocks to form the canyon.

Along the Florida coast, many homeowners place piles of large rocks along their beachfront property. What kind of damage do these rocks help prevent?

• erosion
• deposits of new soil
• flooding
• loss of plant life