Tag: rivers, coasts and glaciation

Quizzes (8) Questions (75)

Questions Related to rivers, coasts and glaciation

Multiple choice geography rivers, coasts and glaciation rivers rivers and their work exogenic forces

Carbonation, solution and oxidation are the process of ________.

  1. mechanical weathering

  2. biological weathering

  3. chemical weathering

  4. none of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Decomposition and disintegration and decomposition of rocks due to chemical reaction is called chemical weathering. Chemical weathering takes place through the process of solution, oxidation and carbonation. Solution refers to the dissolution of soluble particles and minerals from the rocks with the help of water in motion. The atmospheric oxygen in rain water when meet with mineral like iron, rusting takes place and the colour of the rock changes. The process is called oxidation. When the carbon dioxide present in water reacts with rocks new chemical substances like calcium carbonation and iron carbonate are formed. This process is called carbonation. 

Multiple choice geography rivers, coasts and glaciation rivers rivers and their work exogenic forces

Exfoliation is a natural process which results from ___________.

  1. mechanical weathering

  2. chemical weathering

  3. physical weathering

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Exfoliation is type of mechanical weathering, it is also known as onion weathering. The exfoliation refers to peeling off concentric shells of rocks due to combined actions of heat and wind in hot arid and semi-arid regions and monsoon lands. Exfoliation is more common over crystalline rocks.  

Multiple choice geography rivers, coasts and glaciation rivers rivers and their work exogenic forces

Which chemical weathering process involves the action of carbonic acid on rocks such as limestone?

  1. Hydration

  2. Carbonation

  3. Solution

  4. Oxidation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Carbonation is the reaction of carbonate or bicarbonate ions with minerals. The process of carbonation is also known as solution wherein atmospheric carbon dioxide after mixing with water forms carbonic acid which after reacting with carbonate rocks like limestoe forms calcium bicarbonate which is easily dissolved in water.

Multiple choice geography rivers, coasts and glaciation rivers rivers and their work exogenic forces

Exogenetic process includes _________.

  1. weathering

  2. erosion

  3. mass wasting

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The exogenetic forces or processes are originated from the atmosphere. These forces are continuously engaged in the destruction of the relief features created by the endogenertic forces through their weathering, erosion, mass movement. 

Multiple choice geography rivers, coasts and glaciation rivers rivers and their work exogenic forces

Which one of these is not an agent of weathering?

  1. Water

  2. Ice

  3. Soil

  4. Temperature
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Weathering is the breakdown or dissolving of rocks and mineral in the Earths surface. Water, ice, acids, salts, plants, animals and changes in temperature are all agents of weathering. There are three mains types of weathering, viz.; 
Physical, Chemic and Biological.
Multiple choice geography rivers, coasts and glaciation rivers rivers and their work exogenic forces

What is the name given to the group of weathering processes associated with the action of organism _____________.

  1. Physical weathering

  2. Mechanical weathering

  3. Biological weathering

  4. Chemical weathering
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Biological weathering refers to decomposition and disintegration of rocks due to organic material of both flora and fauna. Production of different kinds of organic acids such as humic acids, baterial acids, microfaunal acids etc produced by organic materials help in the decomposition and disintegration of rocks and soils.

Multiple choice geography rivers, coasts and glaciation rivers rivers and their work exogenic forces

Chemical weathering is more dominant in the areas of _______.

  1. arid climate

  2. humid climate

  3. temperate climate

  4. polar climate
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Decomposition and disintegration of rocks due to chemical reaction is called chemical weathering. The chief agents of chemical weathering are air and water. By the action of this two agents, the minerals in rock undergo chemical change and form a new chemical substance. Chemical weathering is more dominant in the area of humid climate. 

Multiple choice geography rivers, coasts and glaciation rivers rivers and their work exogenic forces

When oxygen combines with iron and other elements in rocks the process is called _________.

  1. solution

  2. oxidation

  3. carbonation

  4. hydration
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The oxidation simply means a reaction of atmospheric oxygen to form oxides. The atmospheric oxygen after reacting with the rocks produces several types of oxides, iron oxide being the most important, which weaken the rocks to disintegrate.

Multiple choice geography rivers, coasts and glaciation rivers rivers and their work exogenic forces

Weathering is the process of breaking up the rocks by weather changes such as _____________.

  1. Moisture

  2. Precipitation

  3. Temperature

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in weather conditions like temperature, moisture, precipitation, are all agents of weathering.

Multiple choice geography rivers, coasts and glaciation rivers rivers and their work exogenic forces

Which sequence of processes occurs in the correct order?

  1. Erosion, weathering, transportation

  2. Erosion, transportation, weathering

  3. Weathering, erosion, transportation

  4. All of these processes occur at the same time.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

  • The correct sequence of events of the soil erosion process is weathering, erosion, transportation.
  • Weathering: It is a process by which small rocks are broken down into further smaller pieces.
  • Erosion: The small fragments of rocks or dust formed by weathering process is moved by wind or water.
  • Transportation: This is the process by which the sand or rock fragments are carried on to the other places.