Advertisements
Advertisements
प्रश्न
Give a geographical reason:
Oxidation changes the size and colour of the rocks.
Advertisements
उत्तर
Oxidation changes the size and colour of the rocks because -
- Oxygen in the air and water reacts with certain elements in the minerals inside the rock.
- In this process, the minerals in the rock react with the oxygen present in the air or water.
- Metals, particularly iron and aluminium, commonly oxidize forming iron or aluminium oxides. It is also called rusting.
- These oxides are larger in volume than in the original rocks.
- The iron oxides are red in colour and aluminium oxides are yellow.
- Thus, oxidation changes the size and colour of the rock.
APPEARS IN
संबंधित प्रश्न
From encyclopedias and the Internet, find out the different types of soil found in India. Discuss the importance of these soils for crops cultivated in our country. You should form groups in class for this activity.
Make a chart for your classroom showing the causes of different types of weathering.
What is weathering? Illustrate the process graphically.
Rewrite the following sentence, choosing the right word from the options given below:
_______soils are those which are undisturbed by erosion or deposition.
What are the various factors governing the formation of soil? Which one is the most important and why?
What do you understand by the following term:
Weathering
Give reasons for the following :
Farmers are encouraged to adopt soil conservation methods.
Give a geographical reason:
Temperature is the main factor behind granular weathering.
Give a geographical reason:
Human is an agent of weathering.
Consider the given statement and choose the right option given below.
- The nature and magnitude of weathering differ from place to place and region to region.
- Granular disintegration takes place due to the action of volcanoes.
- Weathering is a prerequisite in the formation of soil.
Which of the above statement is/are the right statement.
