Module 5

Question 1

It is the processes occurring on the Earth’s surface and that generally reduce relief

Answer 1

Exogenic Process

Question 2

What are the 2 exogenic process

Answer 2

1. Degradation
2. Aggradation

Question 3

Is the breakdown of rocks into pieces without any change in its composition.

Answer 3

Mechanical weathering or physical weathering

Question 4

Due to tectonic factors, granite may arise to form mountain range. after the granite ascends and cools, the overlaying rocks and sediments may erode. at the point when the pressure diminishes, the rock expands, cools, and became brittle and fractured

Answer 4

Pressure

Question 5

Rocks expand and are fractured when expose to high temperature.
However, if the temperature drops to 0°C (freezing point of water), it also expands and causes fracture

Answer 5

Temperature

Question 6

Generally, rocks have fracture in its surface and when water accumulates in the crack and at that point freezes, the ice expands and breaks the rock apart.

Answer 6

Frost wedging

Question 7

This primarily occurs during collision of rocks, sand, and silt due to current or waves along a stream or seashore causing sharp edges and corners to wear off and become rounded.

Answer 7

Abrassion

Question 8

What are the types of chemical weathering

Answer 8

1. Reaction with water
2. Reaction with Oxygen
3. Reaction with acid
4. Reactions with organisms

Question 8

he roots grow causing penetration into the crack, expand, and in the long run, break the rock.

Answer 8

Organic Activity

Question 9

Animals like rats, rabbits and squirrels excavate into the ground to create a space for habitation.

Answer 9

Burrowing Animals

Question 9

Activities such as digging, quarrying, denuding forests and cultivating land contribute to physical weathering.

Answer 9

Human Activity

Question 10

Is the geological process in which earth materials are transported from one place to another

Answer 10

Erosion

Question 11

What are the 2 types of erosion

Answer 11

1. Physical erosion
2. Chemical erosion

Question 12

It refers to rocks changing their physical properties without changing their basic chemical composition

Answer 12

Physical erosion

Question 13

Causes the breakdown and decay of rocks through a chemical process

Answer 13

Chemical erosion

Question 14

Refers to the displacement of solids such as water, wind and ice

Answer 14

Erosion

Question 15

Refers to the decomposition of soils and their minerals and rocks through direct contact with the earth’s atmosphere

Answer 15

Weathering