Questions

Q:

Nitrification is the biological process of converting

A) N2 into nitrate B) N2 into nitrite
C) Ammonia into nitrite D) Ammonia into N2
 
Answer & Explanation Answer: C) Ammonia into nitrite

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Filed Under: Chemistry

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Q:

Why is Carbon Monoxide a pollutant ?

A) Reacts with haemoglobin B) Makes nervous system inactive
C) It reacts with Oxygen D) It inhibits glycolysis
 
Answer & Explanation Answer: A) Reacts with haemoglobin

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Filed Under: Chemistry
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Q:

Glass is also called ________.

A) Supercooled liquid B) Super liquid
C) Ideal liquid D) Distilled liquid
 
Answer & Explanation Answer: A) Supercooled liquid

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Q:

Which of the following elements has the lowest melting point?

A) Platinum B) Carbon
C) Cobalt D) Krypton
 
Answer & Explanation Answer: D) Krypton

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Q:

_______________ is the movement of molecules across a cell membrane from a region of their lower concentration to a region of their higher concentration.

A) Diffusion B) Osmosis
C) Active Transport D) Passive Transport
 
Answer & Explanation Answer: C) Active Transport

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Q:

A section of DNA that provides information for one protein is called the ___.

A) lysosome B) gene
C) chromosome D) nucleus
 
Answer & Explanation Answer: B) gene

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Filed Under: Biology
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Q:

What is the name of a group of similar cells performing a specific function?

A) Tissue B) Organ
C) Organ system D) Cellular organization
 
Answer & Explanation Answer: A) Tissue

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Filed Under: Biology
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Q:

In the following question, out of the four alternatives, select the word opposite in meaning to the word given.

Raucous

A) Dulcet B) Hoarse
C) Jarring D) Torrent
 
Answer & Explanation Answer: A) Dulcet

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Filed Under: English
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