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महाराष्ट्र राज्य शिक्षण मंडळएचएससी कला (इंग्रजी माध्यम) इयत्ता ११ वी

Can animals and plants also influence weathering? Will that be physical or chemical weathering? Which type of weathering does stone quarrying cause? - Geography

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प्रश्न

Can animals and plants also influence weathering? Will that be physical or chemical weathering? Which type of weathering does stone quarrying cause?

टीपा लिहा

उत्तर

  1. Yes, burrowing animals widen the fissures in the rocks. Rocks become weak and disintegrate.
  2. The roots of the trees and other plants penetrate in the soil, they grow in size, exert pressure on rocks, widen cracks in the rocks and rocks break. Many microscopic organisms such as algae, lichens, bacteria, moss, etc produce chemicals and they break down the outer layer of the rock. These chemicals are responsible for the physical and chemical weathering of rocks.
  3. The stone quarrying causes the anthropogenic weathering.
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Types of Weathering
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Weathering and Mass Wasting - Use your brain power! [पृष्ठ १९]

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बालभारती Geography (Social Science) [English] 11 Standard
पाठ 2 Weathering and Mass Wasting
Use your brain power! | Q 1 | पृष्ठ १९

संबंधित प्रश्‍न

Identify the correct correlation:

A: Assertion; R: Reasoning

A: In areas of high rainfall, slides are very common.

R: Types of mass wasting movements are dependent on a region's climate.


Identify the correct correlation:

A: Assertion; R: Reasoning

A: Gravity is a major factor in mass wasting.
R: Gravity pulls all things down to the earth's surface.


Identify the correct correlation:

A: Assertion; R: Reasoning

A: Freeze and thaw weathering is common in desert areas.
R: Water gets into cracks and breaks the rocks.


Identify the correct group:


Draw a neat and labelled diagram of Biological weathering.


Answer in detail:

Explain with examples the process of weathering happening in Konkan.


In which regions will freeze-thaw weathering not be effective?


The satellite images are given in figure A and B belong to the same location but a different timeline. Study the images and answer the following questions.

                                    Figure A

                                  Figure B

  1. Compare the images and tell what differences do you find in these images. 
  2. In 2019 what does the patch of land going from north-west to south-east signify? Why was it not there in the 2011 image?
  3. To what extent is the climate of the place responsible for this disaster?
  4. Which other factors are responsible for the disaster?

Study the following schematic diagram. It shows the relationship between the speed of material and moisture content. Read the index, and answer the following questions:

  1. Fast
  2. Slow
  3. Dry
  4. Wet
  1. Creep
  2. Slide
  3. Fall
  4. Flow

Question:

  1. What will happen when the weather conditions are dry?
  2. When will a flow occur?
  3. When will a creep occur?
  4. Now can you enumerate the factors which affect mass wasting?

Think of the reason why landslides should be more frequent in the foothill zone of the Himalayas and Western Ghat region. Why do landslides not occur in Marathwada in Maharashtra or the Maidan area in Karnataka?


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