Q:

Which statement correctly describes the role of chance in evolution?

A) An allele that increases evolutionary fitness cannot be lost from a population by chance events.	B) The ultimate source of new alleles is mutation, random changes in the nucleotide sequences of an organism's DNA
C) Evolutionary change proceeds by an accumulation of changes that occur by chance.	D) None of the above

Answer & Explanation Answer: B) The ultimate source of new alleles is mutation, random changes in the nucleotide sequences of an organism's DNA

Explanation:

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Q:

Shillong is a hill station in northeast India and is capital of which state?

A) Sikkim	B) Manipur
C) Tripura	D) Meghalaya

Answer & Explanation Answer: D) Meghalaya

Explanation:

Shillong is the capital city of Meghalaya state in India. It is well known tourist place as a hill station in northeast India which attracts tourists all over the world.

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Q:

Which macronutrient is vital for every function of the body?

A) Fats	B) Carbohydrates
C) Water	D) Proteins

Answer & Explanation Answer: C) Water

Explanation:

The macronutrient water is the most essential nutrient which plays a vital role in every function of the body. Macronutrients are those nutrients that are required in excess amounts for the development and functioning of the body.

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Q:

Refractive Index of glass with respect to water is

A) 4/3	B) 9/8
C) 2/3	D) 8/9

Answer & Explanation Answer: D) 8/9

Explanation:

Refractive Index of glass with respect to water can be calculated by

(Refractive Index of glass with respect to air) × (1/Refractive Index of water with respect to air)

We know that,

Refractive Index of glass with respect to air = 4/3

Refractive index of water with respect to air = 3/2

Hence, Refractive Index of glass with respect to water = (4/3) x (2/3) = 8/9.

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Q:

Select the correct statement about the ureters.

A) The ureter is innervated by parasympathetic nerve endings only.	B) Ureters contain sphincters at the entrance to the bladder to prevent the backflow of urine.
C) The epithelium is stratified squamous like the skin, which allows a great deal of stretch.	D) The ureters are capable of peristalsis like that of the gastrointestinal tract.

Answer & Explanation Answer: D) The ureters are capable of peristalsis like that of the gastrointestinal tract.

Explanation:

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Q:

Which measurement depends on gravitational force?

A) Mass	B) Weight
C) Height	D) All of the above

Answer & Explanation Answer: B) Weight

Explanation:

We know that,

Weight W = mg. That is mass times gravitational force.

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Q:

Wind and solar energy are examples of

A) Finite energies	B) Renewable energies
C) Non renewable energies	D) None of the above

Answer & Explanation Answer: B) Renewable energies

Explanation:

Wind and solar energy are examples of Renewable energies.

Renewable energy sources are those which can be naturally replenished.

wind_and_solar_energy_are_examples_of1535692456.jpg image

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Q:

India's Largest tractor manufacture Mahindra & Mahindra had recently made a take over bid on a European company, Universal Tractors. The Company is based in

A) England	B) Finland
C) Norway	D) Romania

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