How are mountains created Class 9?

The magma ( means hot fluid or semi-fluid material below or within the earth’s crust from which lava and other igneous rock is formed on cooling) will harden on the Earth’s surface, forming a mountain. Mountains usually have steep, sloping sides and sharp or rounded ridges, and a high point, called a peak or summit.

What are mountains Class 9 ICSE?

Answer: Block mountains are formed on the both sides of a rift valley, which is formed by deep submergence of a large landmass leaving behind two raised platform type blocks known as Block mountains. These landforms are created by displacement of landmass along fault lines known as faulting.

How are various landforms formed on the surface of the Earth Class 9 ICSE?

Landforms are formed by both endogenic and exogenic forces. Endogenic forces: Sudden forces like earthquakes, volcanoes, and landslides. Exogenic forces: Erosional and depositional landforms formed because of agents like water, wind, sea waves and glaciers.

What are the benefits of mountains Class 9?

(1) Altitude may fight obesity. (2) It also lowers the risk of heart disease. (3) The mountains inspire physical activity. sleep.

What are fold mountains Class 9?

Fold mountains are created where two or more of Earth's tectonic plates are pushed together. At these colliding, compressing boundaries, rocks and debris are warped and folded into rocky outcrops, hills, mountains, and entire mountain ranges.

How are sedimentary rocks formed Class 9?

How are sedimentary rocks formed ? Answer: Continuous deposition of sediments of silt, soil, debris etc. by water, wind and ice along lower landforms and solidification into different layers result in the formation of light sedimentary rocks.

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How many types of mountains are there in India?

There are 4 types of mountains, viz. fold mountains, block mountains and volcanic mountains.

What is the difference between a mountain and a plateau class 6?

A mountain is any natural elevation of the earth surface. A plateau is an elevated flat land. It is considerably higher than the surrounding area. It is a flat-topped table land, standing above the surrounding area.

What kind of climate does the northern mountain region have class 4?

It has a cold desert climate. It is a region of barren, arid, frigid and wind-blown wastelands. Areas south of the Himalayas are largely protected from cold winter winds coming from the interior of Asia.

How do the northern mountains influence the climate of India Class 3?

The Himalayas play a very important role in influencing the climate of India. India is a monsoon land only because of the presence of Himalayas. It traps the monsoon winds from Arabian sea and Bay of Bengal and forces them to shed their moisture content within the Indian sub-continent in the form of snow and rain.

How are volcanic mountains formed Class 6?

(4) Volcanic mountains: These mountains are formed as a result of the cooling down of lava and other materials that come out of a volcano during volcanic eruptions. Mount Kilimanjaro (Tanzania) is an example of a volcanic mountain.

How is a fault-block mountain formed?

Fault-block mountains are formed by the movement of large crustal blocks along faults formed when tensional forces pull apart the crust (Figure 3). Tension is often the result of uplifting part of the crust; it can also be produced by opposite-flowing convection cells in the mantle (see Figure 1).

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How are metamorphic rocks used?

Quartzite and marble are the most commonly used metamorphic rocks. They are frequently chosen for building materials and artwork. Marble is used for statues and decorative items like vases (Figure 4.15). Ground up marble is also a component of toothpaste, plastics, and paper.

What are uses of igneous rocks?

People use granite for countertops, buildings, monuments and statues. Pumice is also an igneous rock. Perhaps you have used a pumice stone to smooth your skin. Pumice stones are put into giant washing machines with new jeans and tumbled around.

Which is the largest mountain in India?

Also known as the Five Treasures of Snow, Kangchenjunga stands tall at the elevation of 8586 m above sea level. The mountain by Tamur river lies between India and Nepal. It is the highest peak in India and the third highest summit in the world.

Why are plains thickly populated Class 5?

Answer: Plains are usually highly fertile and hence most ideal for cultivation. It is very easy to make transport network in the plains. Due to above mentioned factors; plains are the best areas for human habitation. Hence, plains are thickly populated.

How are plains formed ?( Explain the process properly with examples?

The river flow down the slopes of mountains and erode them. They carry forward the eroded material. Then they deposit their load consisting of stones, sand and salt silt along their courses and in their valleys. It is from these deposits that plains are formed.

How are Himalayas useful to us Class 3?

The Himalayas save our country from the cold and dry winds of Central Asia. They also prevent the monsoon winds of the Indian Ocean from crossing over to Northern countries and cause heavy rainfall in Northern India. Many rivers have their sources in the Himalayan ranges. The Himalayan slopes have dense forests.

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Where are the great Himalayan mountain ranges located Class 3?

It extends southeastward across northern Pakistan, northern India, and Nepal before trending eastward across Sikkim state (India) and Bhutan and finally turning northeastward across northern Arunachal Pradesh state (India); throughout nearly all of its length it adjoins to the north the southern Tibet Autonomous Region …

What is a mountain pass Class 4?

a mountain pass is a path through the mountain range or the ridge. these passes are very important as they provide a route through the mountain ranges which give a barrier for travelling. egs – karakoram pass. nathu-la pass.

How do the Himalayas play an important role in shaping the Indian climate?

The Himalayas prevent the cold winds from Central Asia from entering the subcontinent. It is because of these mountains that this subcontinent experiences comparatively milder winters as compared to Central Asia.

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