breaking down and moving rocks

Sand is formed due to the breaking down of……………….

• Glass

• wood

• rocks

• plastic

deltas are formed by weathering process?

• true

• false

sand dunes are lowland areas which have gently sloped sides?

• true

• false

valleys are lowland areas which have gently sloping sides?

• false

• true

A natural movement of air that results from the difference in temperature between cold air and hot air…………

• waves

• wind

• mountains

The valleys have a steep slope?

• true

• false

The canyons have steep sides?

• true

• false

erosion process is usually followed by ……………..process

• deposition

• weathering

all the following are processes that can change the Earth's surface except..........................

• erosion

• digestion

• deposition

• weathering

wind can pick up sand grains during the formation of sand dunes?

• true

• false