g4,t2,u2,c1

They are deep valleys covered by following water.

• Canyons

• Weathering

• Erosion

• Deposition

Is the breaking down large rocks into “Small rocks “sediments”

• Weathering

• Erosion

• Deposition

Is the Movement the sediments from place to another.

• Weathering

• Erosion

• Deposition

The dropping (laying down) of sediments in new place By wind, water or gravity

• Weathering

• Erosion

• Deposition

When a river carries sediments meet a sea, the delta will be formed by ............................process.

• Weathering

• Erosion

• Deposition

........................................carry sand grain to short distance (1 m).

• gentle wind

• strong wind

........................................carry sand for long distance.

• gentle wind

• strong wind

large sand dunes are formed due to .......................................

• weak wind

• strong wind

It is the breaking down of rocks due to physical factors and no change occurs in nature of substance.

• mechanical weathering

• chemical weathering

It is the change in structure of rocks due to chemical reaction and a big change occur in the nature of substance.

• mechanical weathering

• chemical weathering