Science

Question 1

Weathering & soil erosion are natural proccesses that shape the Earth’s surfaces

Answer 1

True

Question 2

Weathering is the breaking down of rocks into smaller particles

Answer 2

True

Question 3

Soil Erosion is the wearing away of soil particles from one place to another

Answer 3

True

Question 4

The agents of weathering & erosions are water, wind, temperature changes, plants, animals, & people

Answer 4

True

Question 5

Different kinds of weathering

Answer 5

Plants, wind, chemicals, animals, snow or frost, water, changes in temperature.

Question 6

3 types of weathering

Answer 6

Physical, chemical, and biological.

Question 7

What is Physical weathering?

Answer 7

It happens in places where there is little soil & few plants are growing.

Question 8

Causes of Physical weathering

Answer 8

Wind, water, ice, plants, human building.

Question 9

What is Chemical weathering?

Answer 9

It breaks down by changing their composition.

Question 10

Most common types of chemical weathering

Answer 10

Carbonation, oxidation, and hydrolosis.

Question 11

What is carbonation?

Answer 11

It is the proccess where carbon dioxide in the air dissolves easily,

Question 12

what is oxidation?

Answer 12

The proccess of breaking down rocks by oxygen & water, often giving rich rocks a rusty color.

Question 13

What is Hydrolosis

Answer 13

it occurs when acid water caused the rocks to break producing clay & soluble rocks.

Question 14

What is Biological Weathering?

Answer 14

It occurs when living things like plants & animals cause rocks to break down or change in their compositon.

Question 15

What is erosion?

Answer 15

The proccess of washing away weathered rocks & soil.

Question 16

what is deposition?

Answer 16

the proccess of dropping sediments settles out of the water dropped by wind.

Question 17

The erosion of topsoil leads to lesser harvest of crops that may cause shortage of

Answer 17

food supply

Question 18

Soil erosion can change the _____ as water seeps through the mountain and cause landslide

Answer 18

landforms

Question 19

Soil erosion causes ____ due to few roots of plants that can grow to absorb water

Answer 19

flooding and siltation

Question 20

3 TYPES OF WEATHERING

Answer 20

Plants - Wind - Chemicals - Animals - snow or frost - water - changes in temperature

Question 21

Topsoil

Answer 21

The upper most layer of a mature soil or soil in the horizon

Question 22

Natural Forces That Causes Soil Erosion

Answer 22

water - rainfall & snow - wind - glaciers - Overgrasing Animals - Burning of Excessive cutting of Trees - gold mining - quarrying.

Question 23

Factors affecting soil erosion

Answer 23

Climate - Slope of the land types - Vegetation Cover

Question 24

Rainfall & snow, air temp, wind, speed. & the type of season are some of the components of climate that contribute to soil erosion

Answer 24

Climate

Question 25

Some land with more steep slopes erode more soil by water than the land with very slight slope.

Answer 25

Slope of the Land types.

Question 26

Plants protect the soil from being exposed directly to wind & rainfall.

Answer 26

Vegetation cover.

Question 27

Mass wastiing or mass movement

Answer 27

The movement of rocks & soil due to gravity

Question 28

A destructive form of rapid mass wasting due to gravity where blocks of rock & soil become detached & slide downhill

Answer 28

Landslide

Question 29

a type of mass movement in which a mass of rock and suddenly slips down a slope in a large mass

Answer 29

rockfall or slump

Question 30

Effects of soil erosion

Answer 30

Shortage of Food supply - Changes of Landforms - Flooding and Siltation.

Question 31

Types of Weather Disturbances

Answer 31

Storm - Thunderstorm - Hurricane - Tropical Cycle