Chapter 7 - Personally Created Questions

Question 1

What are the two factors that effect physical weathering?

Answer 1

Temperature

Pressure

Question 2

What are the two main factors that effect chemical weathering?

Answer 2

Temperature

Composition of rock // rock composition

Question 3

Chemical weathering Is more rapid in climates with…

3 answers

Answer 3

Warm temperatures, abundant rainfall, lush vegetation.

Question 4

What natural thing can cause pressure onto a rock // make the rock begin to physically break down?

Answer 4

The roots of trees, as they grow in the cracks and break through the rocks

Question 5

What are the 4 main agents in chemical weathering?

Answer 5

Water
Oxygen
Carbon dioxide
Acid precipitation

Question 6

EXTRA: potassium feldspar plus water equals what?

Answer 6

Kaolinite

Question 7

Oxidation is known as, in other terms, as what?

Answer 7

The loss of electrons.

Question 8

The iron in minerals reacts with what?

Answer 8

The oxygen in water/air

Question 9

Carbon Dioxide, which forms naturally, forms what when mixed with water? In other words, CO2 and water create…?

Answer 9

Carbonic acid

Question 10

Carbonic acid is formed using…?

Answer 10

Water and CO2

Question 11

What causes acid precipitation?

Answer 11

Sulfur dioxide, which comes from burning fossil fuels and motor vehicle exaust.

Question 12

Sulfur dioxide is made up of what?

Answer 12

Carbon Dioxide (CO2) and nitrogen oxides

Question 13

True or false, chemical weathering is weakest along the equator?

Answer 13

False! Chemical weathering is most effective in the equator

Question 14

What climates can speed up (and slow down) physical weathering?

Answer 14

Rapid: Cool climates (ice wedging)
Slow: areas above freezing temps/dry air

Question 15

Do all rocks weather differently?

Answer 15

Yes, because all rocks are different rock types and have different compositions.

Question 16

True or false: When you move soil in any way, you are causing erosion.

Answer 16

True! Erosion doesn’t have to be natural.

Question 17

Erosion occurs with… (4 answers)

Answer 17

Moving water, Glaciers, wind, living things

Question 18

Fertile soil (more specifically fertile) means what?

Answer 18

Able to sustain living things.

Question 19

When rivers and streams slow down and deposit sediments, what can they create?

Answer 19

Deltas (or fertile deltas)

Question 20

Can erosion occur on the ocean floor?

Answer 20

Yes! It’s because of the waves, and they can carve out cliffs, arches, etc, and the accumulated sand creates/ed the barrier islands

Question 21

What percent of the earth to glaciers cover today?

Answer 21

10% of earth’s surface.

Question 22

As a glacier moves, what does it act like AND what does the land behind it look like?

Answer 22

Bulldozer; left smooth

As the ice retreats, stuff is left behind

Question 23

What is the largest glacier in North America?

Answer 23

Bearing glacier

Question 24

What can be used to act as a wind barrier and reduce the speed of wind?

Answer 24

Trees, usually placed in a line. They hold the soil together and conserve moisture.

Question 25

Yes or no: will islands replenish themselves without human interaction?

Answer 25

Yes

Question 26

???Erosion by living things???

Answer 26

Plants/Animals, Humans

Question 27

Soil is characterized by…? (3 Answers)

Answer 27

Texture
Fertility
Color

Question 28

Weathered bedrock, or the rock of which soil originated, is known as?

Answer 28

The parent rock // parent material.

Question 29

??What are the Steps in soil formation? (3)

Answer 29

The bedrock/parent rock breaks down, continues to break down, then nutrients are added by organisms, and the texture changes to hold H2O.

Question 30

What are the names of the mail soil horizons; and what do they usually contain?

Answer 30

O: Top layer of organic material
A: Weathered rock mixed with organic material
B: Enriched with clay / other minerals
C: broken-down breadrock