Solution of Chapter 6. Geomorphic Processes (NCERT - Fundamental of Physical Geography Book)

Multiple choice question.

Which one of the following processes is a gradational process?

Multiple choice question.

Which one of the following materials is affected by hydration process?

Multiple choice question.

Debris avalanche can be included in the category of:

Answer the following questions in about 30 words.

(i) It is weathering that is responsible for bio-diversity on the earth. How?

(ii) What are mass movements that are real rapid and perceptible? List.

(iii) What are the various mobile and mighty exogenic geomorphic agents and what is the prime job they perform?

(iv) Is weathering essential as a pre-requisite in the formation of soils? Why?

Answer the following questions in about 150 words.

(i) “Our earth is a playfield for two opposing groups of geomorphic processes.” Discuss.

(ii) Exogenic geomorphic processes derive their ultimate energy from the sun’s heat. Explain

(iii) Are physical and chemical weathering processes independent of each other? If not, why? Explain with examples

(iv) How do you distinguish between the process of soil formation and soil forming factors? What is the role of climate and biological activity as two important control factors in the formation of soils?

Depending upon the topography and materials around you, observe and record climate, possible weathering process and soil contents and characteristics.

Why is the surface of the earth uneven?

Do you think it is essential to distinguish geomorphic agents and geomorphic processes?

Epeirogeny and orogeny, cite the differences.

What do the words volcanism and volcanoes indicate?

Why do you think that the slopes or gradients are created by tectonic factors?

What is the sole driving force behind all the exogenic processes?

Is this little motion which can occur sometimes due to weathering synonymous with transportation? If not, why?

Can we give iron rusting as an example of oxidation? How essential is water in chemical weathering processes? Can chemical weathering processes dominate in water scarce hot deserts?

What is the difference between exfoliation domes and exfoliated tors?

Between mass wasting and mass movements, which term do you feel is most appropriate? Why? Can solifluction be included under rapid flow movements? Why it can be and can’t be?

Can you compare the three climatically controlled agents?

There is a shift of materials in mass movements as well as in erosion from one place to the other. So, why can’t both be treated as one and the same? Can there be appreciable erosion without rocks undergoing weathering?

Is weathering solely responsible for soil formation? If not, why?

Is it necessary to separate the process of soil formation and the soil forming control factors? Why are time, topography and parent material considered as passive control factors in soil formation?