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Q:

Statement I :

Portions of glacial troughs may exhibit remarkably flat floors.

Statement II :

The flat floor in a glacial trough is produced by uniform glacial erosion.

A) Both the statements are individually true and Statement II is the correct explanation of Statement I	B) Both the statements are individually true but Statement II is not the correct explanation of Statement I
C) Statement I is true but Statement II is false	D) Statement I is false but Statement II is true

Answer & Explanation Answer: A) Both the statements are individually true and Statement II is the correct explanation of Statement I

Explanation:

Glaciers cut distinctive U-shaped valleys with a flat floor and steep sides. These are an example of a glacial erosion landform.

Example: As the main glacier erodes deeper into the valley, the tributary is left higher up the steep sides of the glacier.

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Filed Under: General Science
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Q:

Statement I :

Incised meanders are formed in the mature stage of a river.

Statement II :

Incised meanders are characterized by rejuvenation and upliftment of land.

A) Both the statements are individually true and Statement II is the correct explanation of Statement I	B) Both the statements are individually true but Statement II is not the correct explanation of Statement I
C) Statement I is true but Statement II is false	D) Statement I is false but Statement II is true

Answer & Explanation Answer: D) Statement I is false but Statement II is true

Explanation:

Rejuvenation occurs when the river’s base level falls (i.e. when sea level falls). This can be a consequence of either a fall in the amount of sea water or the land rising. Incised meanders are meanders which are particularly well developed and occur when a river’s base level has fallen giving the river a large amount of vertical erosion power, allowing it to down cut. Hence, 2nd statement is correct.

There are two types of incised meanders, entrenched meanders and ingrown meanders.As they are products of rejuvenation, they are not formed in mature stage of a river

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Filed Under: General Science
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Q:

If $2 x + \frac{2}{x} = 3,$ then the value of $x^{3} + \frac{1}{x^{3}} + 2$ is

A) 3/4	B) 4/5
C) 5/8	D) 7/8

Answer & Explanation Answer: D) 7/8

Explanation:

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Filed Under: Simplification
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Q:

If $\frac{a^{2}}{b + c} = \frac{b^{2}}{c + a} = \frac{c^{2}}{a + b} = 1$ then the value of $\frac{2}{1 + a} + \frac{2}{1 + b} + \frac{2}{1 + c}$

A) 0	B) 1
C) 2	D) 3

Answer & Explanation Answer: C) 2

Explanation:

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Filed Under: Simplification
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Q:

If 7 times the seventh term of an Arithmetic Progression (AP) is equal to 11 times its eleventh term, then the 18th term of the AP will be

A) 1	B) 0
C) 2	D) -1

Answer & Explanation Answer: B) 0

Explanation:

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Filed Under: Problems on Numbers
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Q:

If sinθ + cosθ = 1, then the sinθ cosθ is equal to

A) 0	B) 1
C) 1/2	D) -1/2

Answer & Explanation Answer: A) 0

Explanation:

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Q:

If $x + \frac{1}{x} = 5,$ then the value of $\frac{x}{1 + x + x^{2}}$ is

A) 1/5	B) 1/6
C) 5	D) 6

Answer & Explanation Answer: B) 1/6

Explanation:

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Q:

If a+b=2c then the value of $\frac{a}{a - c} + \frac{c}{b - c}$ is equal to (where $a \neq b \neq c$ )

A) -1	B) 1
C) 0	D) 1/2

Answer & Explanation Answer: B) 1

Explanation:

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Filed Under: Simplification
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