EXOGENIC PROCESS

Question 1

COMBINED ACTION IF ALL PHYSICAL AND CHEMICAL PROCESS THAT DISINTEGRATE AND DECOMPOSE ROCKS NEAR EARTH’S SURGACE

Answer 1

WEATHERING

Question 2

ALSO CALLED MECHANICAL WEATHERING

Answer 2

PHYSICAL WEATHERING

Question 3

ROCKS ARE BROKEN UP W/O ANY CHANGE IN THEIR CHEMICAL COMPOSITION

Answer 3

PHYSICAL WEATHERING

Question 4

EXAMPLES OF PHYSICAL WEATHERING

Answer 4

BLOCK DISINTEGRATION, EXFOLIATION, FROST WEATHERING

Question 5

=CAUSED BY SUCCESSIVE HEATING AND COOLING THAT CAUSES THE EXPANSION AND CONTRACTION IF ROCKS
=REPEATED STRESS CAUSED BY THESE CYCLES CAN BREAK DOWN THE ROCK INTO

Answer 5

BLOCK DISINTEGRATION

Question 6

STRIPPING OF THE OUTER LAYERS OF ROCKS/ROCK PEEL OFF FROM THE MAIN ROCK

Answer 6

EXFOLIATION

Question 7

FREEZING AND THAWING OF WATER INSIDE THE JOINTS OF THE ROCKS

Answer 7

FROST WEATHERING

Question 8

WEAKENING OR DISINTEGRATION OF ROCKS AND FORMATION OF NEW CHEMICAL COMPOUNDS CAUSE BY CHEMICAL REACTIONS

Answer 8

CHEMICAL WEATHERING

Question 9

EXAMPLES OF CHEMICAL WEATHERING

Answer 9

OXIDATION, CARBONATION, HYDRATION, SOLUTION

Question 10

OXYGEN REACTS WITH THE ROCK AND CHANGES ITS MINERAL COMPOSITION

Answer 10

OXIDATION

Question 11

=OXYGEN IN HUMID AIR REACTS EITH IRON
=CAN BREAK DOWN ROCKS COMPLETELY WHEN GIVEN ENOUGH TIME

Answer 11

RUST

Question 12

=VARIOUS TYPES OF CARBONATES IN ROCKS
=SOME ARE SOLUBLE IN WATER
=RESULTS IN ENLARGEMENT OF ROCKS AND REMOVAL OF LIME

Answer 12

CARBONATION

Question 13

ABSORPTION OR COMBINATUON OF WATER/ADDITION OF WATER IN THE ROCK INCREASES ITS VOLUME WHICH CHANGES THE SHAPE OF THE GRAINS

Answer 13

HYDRATION

Question 14

=DIRECTLY DISSOLVED IN WATER
=ROCKS SALT AND GYPSUM ARE REMOVED THROUGH THIS PROVESS

Answer 14

SOLUTION

Question 15

=Also called biological weathering
=living organisms contribute to the breakdown of rocks and minerals

Answer 15

BIOLOGICAL WEATHERING

Question 16

PLANTS CAN CONTRIBUTE TO _ AND _

Answer 16

CHEMICAL AND MECHANICAL WEATHERING

Question 17

PLANTS CAN CONTRIBUTE TO _ AND _

Answer 17

CHEMICAL AND MECHANICAL WEATHERING

Question 18

CAUSE THE BREAKDOWN OF ROCKS THROUGH BURROWING

Answer 18

ANIMALS

Question 19

BACTERIA AND FUNGI CAN ALSO AFFECT ROCKS THROUGH INTERACTION WITH THEM

Answer 19

MICROBES

Question 20

PLAY A VERY IMPORTANT ROLE IN THE WEATHERING OF ROCKS/AGRICULTURE, CONSTRUCTION, MINING
= CAUSE OF INCREASE OF ACID RAIN

Answer 20

HUMANS

Question 21

MASS MOVEMENT/MOVEMENT OF ROCK OR SOIL DOWN SLIPES UNDER THE FORCE OF GRAVITY/
CLASSIFIED BASED IN MOISTURE AND SPEED:FALL, SLIDE, FLOW

Answer 21

MASS WASTING

Question 22

DETACHED INDIVIDUAL PIECES OF ROCKS/COMMON ON SLOPES THAT ARE TOO STEEP OR LOOSE

Answer 22

FALL

Question 23

ROCK MATERIALS REMAIN FAIRLY COHERENT AND MOVE ALONG WELL DEFINED SURFACE

Answer 23

SLIDES

Question 24

SATURATED WITH WATER AND MOVE DOWNSLOPES AS A VISCOUS LIQUID

Answer 24

FLOW

Question 25

impact of water or wind detaches and removes soil particles, causing the soil to deteriorate. It occurs primarily when dirt is left exposed to strong winds, hard rains, and flowing water.

Answer 25

SOIL EROSION

Question 26

• Occurs in arid regions like deserts.
• Strong winds carry fine soil particles and sand away from an area, leading to land degradation and loss of fertility.

Answer 26

WIND EROSION

Question 27

• Caused by surface runoff and rainfall.
• Removes thin layers of soil from the surface.
• Can occur in riverbeds and areas affected by floods.
• If left unchecked, it can deplete the soil of nutrients and make it unsuitable for agriculture.

Answer 27

SHEET EROSION

Question 28

Creates deep channels or gullies in the soil.
- These gullies can spread over large areas, further degrading the land.

Answer 28

GULLY EROSION