erosion

which ones are natural elements

• air

• ice

• wind

• rain

Which of the following statements describes how wind can change valleys?

• Wind can gradually wear away the solid rock of river valleys AS MUCH AS thousands of feet over millions of years.

• Wind can wear away the solid rock of river valleys NO MORE than several feet over many millions of years.

Fantasy Canyon, located in Uintah County, is a classic example of

• weathering and erosion in mudstone and claystone have been stripped away by water and wind, leaving the slightly more durable sandstone to be carved into bizarre, melted wax-like forms.

• organic erosion

• plate tectonics

Based on the information presented in the video, what can you infer about the type of erosion that formed the Grand Canyon?

• WInd erosion

• Water erosion

• Sandblasting

• Glacial erosion

What do floodplains, sandbars, and river deltas have in common?

• They've all been formed by water erosion

• They've all been formed by glacial erosion

• They've all been formed by wind erosion

• They've all been formed by sandblasting

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A landform made of sediment that is deposited where a river flows into an ocean or lake is called a...

• sea cave

• mountain

• delta

fossil fuels react with water producing acid rain that wears minerals away in the rock

• chemical weathering
• mechanical weathering
• erosion
• deposition

A large landform that stretches above surrounding land usually in a peak.

• mountain

• valley

• plain

What percentage of Earth's water is NOT drinkable because it is frozen?

• A 97%

• B 2%

• C 1%