Endterm Exam (mine)

Question 1

wearing down
(degradation) of relief/elevations and filling up
(aggradation) of basins/depressions, on the Earth’s
surface.

Answer 1

Exogenic processes

Question 2

The phenomenon of wearing down of the relief
variations of the surface of the earth through erosion is
known as?

Answer 2

Gradation

Question 3

The breaking down or dissolving of
rocks and minerals on the surface of the Earth.

Answer 3

Weathering

Question 4

Mechanical disintegration and chemical decomposition of rocks through the actions of various elements of weather and climate.

Answer 4

Weathering

Question 5

also called mechanical
weathering, disintegrates rocks, breaking them
into smaller pieces.

Answer 5

Physical Weathering

Question 6

when water gets inside the
joints, alternate freezing and thawing
episodes pry the rock apart

Answer 6

Frost wedging

Question 7

force exerted by salt
crystal that formed as water evaporates from
pore spaces or cracks in rocks can cause the
rock to fall apart.

Answer 7

Salt Crystal Growth

Question 8

the wearing away of rocks by
constant collision of loose particles

Answer 8

Abrasion

Question 9

plants and animals
(including humans) as agents of mechanical
weathering.

Answer 9

Biological Activity

Question 10

decomposes rocks through
chemical reactions that change the original rock-forming minerals

Answer 10

Chemical Weathering

Question 11

Occurs when certain minerals are dissolved by acidic solutions

Answer 11

Solution

Question 12

change in the composition of
minerals when they REACT with water

Answer 12

Hydrolysis

Question 13

reaction between minerals and
oxygen dissolved in water.

Answer 13

Oxidation

Question 14

processes which occur on earth’s surface due to the
influence of exogenic forces

Answer 14

Exogenic Process

Question 15

energy emanating from within the earth is the main
force

Answer 15

Endogenic Process

Question 16

Heat causes expansion and contraction of rocks causing smooth rounded surfaces

Answer 16

Temperature changes and expansion

Question 17

Salts in rocks expand due to thermal action, hydration, and crystallization

Answer 17

Salt weathering

Question 18

Three causes of salt weathering

Answer 18

Thermal action, hydration, and crystallization