Formation of Relief

Formation of Relief

Multiple Choice

Which agents  break down earth materials?

• wind only
• earthquakes and gravity
• ice and 007
• wind, water, and ice

Multiple Choice

What is erosion?

• The movement of sediment

• The breaking of sediment

• The dropping of sediment

Multiple Choice

How does wind weather a rock?

• The wind slowly drills a hole in the side of a rock.

• The wind smashes big rocks against each other.

• The wind shakes the big rock and makes it weak.

• The wind blows tiny pieces of rock against a big piece of rock. The tiny pieces slowly break the big piece.

Multiple Choice

How did the grand canyon form?

• There was a river that, over millions of years, weathered and eroded the earth into a deep canyon.

• The grand canyon was always there.

• There was a river that, over only a few years, weathered and eroded the earth into a deep canyon.

• There was a huge ocean that carved the grand canyon.

Multiple Choice

Look at this picture. How does rainwater cause weathering and erosion?

• Rain can't cause erosion.

• The water breaks down soil and carries it down the river.

• The water eats the soil.

• The water does not carry soil.

Multiple Choice

the breakdown or decomposition of rock that takes place when minerals change through chemical processes

• chemical weathering
• mechanical weathering
• erosion
• deposition

Multiple Choice

The ___________of a mountain weathers the fastest

• bottom
• middle
• top
• all parts weather the same

Multiple Choice

How do plants weather rocks?

• during photosynthesis
• when roots grow into cracks of rocks and expand the rock
• when the plant moves water from the roots to the leaves
• Plants don't weather rocks

Multiple Choice

What is the major cause of weathering and erosion to form canyons?

• wind
• ice
• glaciers
• moving water

Multiple Choice

How does freezing water cause the weathering of rocks?  The freezing water—

• keeps the rocks in place
• makes the rocks last longer
• expands cracks and breaks rocks
• causes rocks to fall in landslides

Multiple Choice

The diagrams  shows a natural process that weathers rock.
 Which statement best explains why this process results in weathering?

• frozen water acts as a solute
• water expands when it freezes
• the mass of water increases when it freezes
• frozen water dissolves most types of rock