MCQs
Total Questions : 471
| Page 9 of 48 pages
Answer: Option C. -> All of the above
Answer: (c)
Floods are caused by a variety of factors, both natural and man-made. Apart from soil erosion and silting of river beds which force the water of rivers/ streams to spill over, deforestation has lately been a key factor in fostering recurrent floods.
The presence of trees act as checks against water flow and in turn, protect the underlying soil from getting eroded and then getting washed away.
Answer: (c)
Floods are caused by a variety of factors, both natural and man-made. Apart from soil erosion and silting of river beds which force the water of rivers/ streams to spill over, deforestation has lately been a key factor in fostering recurrent floods.
The presence of trees act as checks against water flow and in turn, protect the underlying soil from getting eroded and then getting washed away.
Answer: Option D. -> Argentina - Pampas
Answer: (d)
Answer: (d)
Answer: Option A. -> These rocks are deposited in layers
Answer: (a)
Answer: (a)
Answer: Option A. -> Side Corrosion
Answer: (a)The Sideways erosion which widens the river valley are called side corrosion.
Answer: (a)The Sideways erosion which widens the river valley are called side corrosion.
Question 85. With reference to the development of a River Valley consider the following statements and choose the correct one.
Select the correct answer using the codes given below:
- In the upper course of a river, there is the maximum gradient of the slope. In this part, the river has maximum erosive capacity. There is more down cutting than lateral cutting.
- In the middle course the erosion and the deposition capacity of the river are almost equal. In this part, the river flows relatively with mild velocity.
- In the lower course, the river runs at a slow speed or is slow-paced. Its chief work is deposition.
Select the correct answer using the codes given below:
Answer: Option C. -> 1, 2 and 3
Answer: (c)
In the upper course, there are features of the youthful stage. The landforms of erosion include deep valleys, gorges, canyon, waterfalls, rapids.
Interlocking spurs etc. In the middle course, the landforms like alluvial fans, meanders and ox-bow lakes are formed. In the lower course landforms found include flood plains, natural levees, delta etc. which are all landforms of deposition and show old age.
Answer: (c)
In the upper course, there are features of the youthful stage. The landforms of erosion include deep valleys, gorges, canyon, waterfalls, rapids.
Interlocking spurs etc. In the middle course, the landforms like alluvial fans, meanders and ox-bow lakes are formed. In the lower course landforms found include flood plains, natural levees, delta etc. which are all landforms of deposition and show old age.
Answer: Option C. -> Equator
Answer: (c)
An equinox is an astronomical event in which the plane of Earth’s equator passes through the centre of the Sun, which occurs twice each year, around 20 March and 23 September.
The equinoxes are the only times when the Sun is exactly overhead at a point on the equatorial line. On an equinox, day and night are of approximately equal duration all over the planet.
Answer: (c)
An equinox is an astronomical event in which the plane of Earth’s equator passes through the centre of the Sun, which occurs twice each year, around 20 March and 23 September.
The equinoxes are the only times when the Sun is exactly overhead at a point on the equatorial line. On an equinox, day and night are of approximately equal duration all over the planet.
Answer: Option C. -> Pyrenees
Answer: (c)
Answer: (c)
Answer: Option A. -> Both 1 and 2
Answer: (a)
Answer: (a)
Answer: Option C. -> Singapore
Answer: (c)
Answer: (c)
Answer: Option D. -> Consuming plate margin
Answer: (d)
Answer: (d)
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