geomorphology & earth landforms section 10 MCQ Questions & Answers Detailed Explanation
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The following question based on Geomorphology & Earth landforms topic of indian geography mcq
(a) Narrow strip of land dividing two oceans
(b) Mouth of a river where it joins the sea
(c) Narrow strip of land connecting two large areas of land
(d) Narrow strip of water dividing two land masses
The correct answers to the above question in:
Answer: (a)
An isthmus is a narrow strip of land connecting two larger land areas, usually with water on either side.
The Panama Canal crosses the Isthmus of Panama, connecting the North Atlantic and Pacific Oceans; the Suez Canal connects the Mediterranean Sea and the Indian Ocean, cutting across the western side of an isthmus formed by the Sinai Peninsula. Strait is the sea counterpart of the isthmus.
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Read more geomorphology earth landforms Based Indian Geography Questions and Answers
Question : 1
The most abundant gas emitted from volcanoes is
a) Sulphur Dioxide
b) Water Vapour
c) Carbon Dioxide
d) Helium
Answer »Answer: (b)
Question : 2
Extensive deserts occur in the western tropical regions of continents because :
a) of the effect of both the offshore easterly trade winds and cold ocean currents.
b) of easterly trade winds.
c) the rate of evaporation is greater along the western margin areas.
d) cold ocean currents flow along the western coasts.
Answer »Answer: (a)
Extensive deserts occur in the western tropical regions of continents because of the effect of both the offshore easterly trade winds and cold ocean currents. Most deserts arise due to atmospheric wind conditions.
Other deserts result from the effects of ocean currents on landmasses, where cool air masses carry fog and mist, but little rain, along coastal regions. The world desert map depicts the location of all the deserts of the world.
They are centred along the Tropics of Cancer and Capricorn. The heart of the tropical desert climate is found near the tropics of Cancer and Capricorn, usually toward the western side of the continents.
Question : 3
The majority of Earth’s crust is composed of which rock?
a) Sedimentary
b) Igneous
c) Carbonate
d) Metamorphic
Answer »Answer: (b)
The Earth is composed predominantly of a large mass of igneous rock with a very thin veneer of weathered material—namely, sedimentary rock. Igneous rocks are formed from the solidification of magma, which is a hot molten or partially molten rock.
Igneous and metamorphic rocks make up 90–95% of the top 16 km of the Earth’s crust by volume.
Question : 4
Block Mountains are basically of two types, e. g.
- tilled block mountains having one steep side represented by fault scarp and one gentle side, and;
- lifted block mountains represent real horst and are characterized by flattened summit of tabular shape and very steep side slopes represented by two boundary fault scarps. Block Mountains are also called Horst Mountains.
a) 1 and 2
b) 1 only
c) None
d) 2 only
Answer »Answer: (a)
Motored by Endogenic forces coming from within the earth.
Block Mountains are basically of two types, e. g. tilled block mountains having one steep side represented by fault scarp and one gentle side, and lifted block mountains represent real horst and are characterized by the flattened summit of tabular shape and very steep side slopes represented by two boundary fault scarps. Block mountains are also called horst mountains. Block mountains are found on all the continents, for example, Young block mountains around Albert Warner.
Question : 5
The theory of plate tectonics was not initially widely accepted because:
a) fossils on South America and Africa did not match.
b) land bridges would have blocked plate movement.
c) Ocean floor mapping showed that older rocks occur away from mid-ocean ridges.
d) rocks of the Earths’s crust were considered too stiff for continents to move through them.
Answer »Answer: (d)
The theory of plate tectonics was not initially widely accepted because rocks of the Earth’s crust were considered too stiff for continents to move through them.
But gradually it was widely accepted among scientists because it relies on hard evidence and could explain most of the modern geological structures (Ocean basins, mountain ranges, rifts etc.)
Question : 6
Which of the following are correct?
- In the behaviour of earthquake waves, we study only three types of waves and they are ‘S’ - Surface waves, ‘L’ - Longitudinal waves and ‘P’ transverse.
- The velocity of P - waves and S - waves increase with the depth throughout.
- L - waves do not pass through the mantle because it is a liquid layer.
- S - waves persists only to the surface and do not penetrate deep into the earth.
a) 1, 2, 3 and 4
b) 2 and 4
c) None
d) 1 and 3
Answer »Answer: (c)
Only the second statement is correct.
GET Geomorphology & Earth landforms PRACTICE TEST EXERCISES
geomorphology & earth landforms section 1
geomorphology & earth landforms section 2
geomorphology & earth landforms section 3
geomorphology & earth landforms section 4
geomorphology & earth landforms section 5
geomorphology & earth landforms section 6
geomorphology & earth landforms section 7
geomorphology & earth landforms section 8
geomorphology & earth landforms section 9
geomorphology & earth landforms section 10
Geomorphology & Earth landforms Shortcuts and Techniques with Examples
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