Soil

Question 1

Mechanical weathering

Answer 1

Breakdown of rock into smaller pieces by physical means

Question 2

Abrasion

Answer 2

Rocks and sediment grinding against eachother and wearing away exposed surfaces.

Question 3

Chemical weathering

Answer 3

Chemical breakdown of rocks and minerals Into a new substance

Question 4

Acid precipitation

Answer 4

Precipitation that contains acids due to air pollution

Question 5

Oxidation

Answer 5

Chemical reaction to which an element combines with oxygen to form an oxide

Question 6

Different weathering

Answer 6

The process which softer less weathering resistant rocks wear away,leaving harder, more resistant rocks behind.

Question 7

Soil

Answer 7

Loose mixture of small mineral fragments and organic matter.

Question 8

Bedrock

Answer 8

The layer of rock beneath soil.

Question 9

Parent rock

Answer 9

Rock that is a source of soil

Question 10

Humus

Answer 10

Very small particles of decayed plant and animal material in soil.

Question 11

Topsoil

Answer 11

The top layer of soil that fontina humus

Question 12

Leaching

Answer 12

The process by which rainwater dissolves and carries away the minerals and nutrients in topsoil.

Question 13

Soil conservation

Answer 13

The various methods. By which humans take care of soil.

Question 14

Weathering

Answer 14

Breakdown of Rock into smaller and smaller pieces.

Question 15

Erosion

Answer 15

The removal of transport of material by wind water or ice.