How does water cause erosion?

• It makes rocks wet.
• It rains and get everything rainy and gooey.
• Rain, rivers, and ocean waves wash rock from one place and move it to another.
• Artic air and freezing rain can cause rocks to freeze.

How does wind cause weathering?

• Wind does not cause weathering.
• Wind makes the clouds move.
• Wind is strong and cause tornadoes.
• Wind blows sand on the rock and wears it down. 

What is the process where "weathered material has been carried away and then laid down (or dropped) somewhere else?"

• erosion
• gravity
• weathering
• deposition

How does a moving glacier cause erosion?

• By covering the rock.
• By freezing the rock.
• By picking up and carrying rocks and weathered material.
• By cracking a large rock into many pieces.

What is the picking up and moving of loose broken rock to a NEW place? 

• erosion 
• gravity
• weathering
• deposition

What  is the slow process that breaks rock into smaller pieces?

• erosion
• gravity
• weathering
• deposition

How could planting trees change the Earth's surface?

• Trees drain nutrients from the soil.
• Trees add carbon dioxide to the air.
• Trees hold the soil and help prevent erosion
• Trees provide more timber for houses.

What occurs when water rises over the banks or sides of a river?

• a landslide
• a flood
• an earthquake
• a huricane

What happens when hardened lava builds up over a long period of time?

• a landslide

• a flood

• rivers form

• mountains form

What happens when hardened lava builds up over a long period of time?

• a landslide
• a flood
• rivers form
• mountains form