Chapter 7.6 -Science

Question 1

Weathering:

Answer 1

Weathering: the process of breaking down rocks by conditions in the atmosphere

Question 2

Erosion:

Answer 2

Erosion: the process of moving weathered rock or soil from one place to another

Question 3

Sediment:

Answer 3

A substance deposited in land or in rivers, lakes or oceans.

Question 4

Soil:

Answer 4

Soil: a complex mixture of the products of weathering and organic matter, both living and dead

Question 5

Deposition

Answer 5

Deposition: the laying down of weathered rock particles and soil by rivers, wind, oceans and glaciers

Question 6

Humus:

Answer 6

Humus: organic matter resulting from the decomposition of plant and animal tissue in the soil. Humus helps the soil hold water and mineral nutrients needed by plants

Question 7

Deforestation

Answer 7

Deforestation: the removal of trees from the land

Question 8

Groynes

Answer 8

Groynes: a jetty built into the sea to prevent the erosion of the beach

Question 9

Acid rain:

Answer 9

Acid rain: rainwater, snow or fog that contains dissolved chemicals, such as carbon dioxide, that make it acidic. Acid rain can cause rock to weather faster than pure rain can.