Q:

Which are two chemicals used to purify water?

A) Chlorine & Fluorine	B) Fluorine & Iodine
C) Chlorine & Hydrogen peroxide	D) Fluorine & Iodine

Answer & Explanation Answer: C) Chlorine & Hydrogen peroxide

Explanation:

Removing the contaminents if any in the water which causes harm to our health is involved in the purifying of water.

This process involves chemicals. Chloramines, Hydrogen peroxide, Iodine are the chemicals which are used in purifying water.

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1 7858

Q:

Who is the father of Green Revolution in India?

A) Jayanth C Narlikar	B) Amartyasen
C) RK Pachowry	D) M.S. Swaminathan

Answer & Explanation Answer: D) M.S. Swaminathan

Explanation:

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Q:

Who was the first posthumous recipient of Bharat Ratna ?

A) B.R. Ambedkar	B) Lal Bahadur Shastri
C) K. Kamraj	D) M.G. Ramachandran

Answer & Explanation Answer: B) Lal Bahadur Shastri

Explanation:

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Q:

What is the shortest phase of the cell cycle?

A) M	B) G1
C) S	D) G2

Answer & Explanation Answer: A) M

Explanation:

Longest and shortest phases Of cell cycle:

Shortest Phase - M phase or Mitotic phase.

Longest phase - G1 phase of the Interphase

Longest and shortest phases During Mitosis:

Longest Phase - Prophase

Shortest Phase - Anaphase

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Q:

Maximum fixation of solar energy is done by

A) Fungi	B) Protozoa
C) Bacteria	D) Green plants

Answer & Explanation Answer: D) Green plants

Explanation:

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Q:

What has a head and a tail but nobody?

Answer

A Coin has a Head and tail but no body. Since the two sides of coin are called as heads and tails.

Workspace

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Q:

The mass of one molecule of oxygen is

A) 2.3 x 10-23 g	B) 3.3 x 10-23 g
C) 4.3 x 10-23 g	D) 5.3 x 10-23 g

Answer & Explanation Answer: D) 5.3 x 10-23 g

Explanation:

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Q:

Rearrange the parts of the sentence in correct order.

Daily pricing

P : is being seen as a ploy

Q : government to escape any political backlash

R : to increase prices while allowing the

A) RQP	B) PRQ
C) QPR	D) PQR

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