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Q:

During fermentation of sugar, the compound which is always formed is

A) Methyl Alcohol B) Ethyl Alcohol
C) Acetic Acid D) Ethylene
 
Answer & Explanation Answer: B) Ethyl Alcohol

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Q:

In mammals, an important role of excretion is played by________

A) Large intestine B) Kidneys
C) Lungs D) Liver
 
Answer & Explanation Answer: B) Kidneys

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Q:

Which one of the following tissues is responsible for increase of girth in the stem of a plant?

A) Tracheid B) Pericycle
C) Intercalary meristem D) Lateral meristem
 
Answer & Explanation Answer: D) Lateral meristem

Explanation:

In vascular plants, the lateral meristem is one of two meristems in which growth occurs in order to increase stem girth. A meristem is the region of plant tissue found on the tips of roots and shoots. It is where cell division occurs to produce new growth.

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Q:

Which of the following is responsible for Vermicomposting?

A) Fungus B) Worms
C) Bacteria D) Birds
 
Answer & Explanation Answer: B) Worms

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Q:

Lichen is an association between which of the two ?

A) Algae and fungus B) Algae and tree
C) Fungus and tree D) Bacteria and legume plant
 
Answer & Explanation Answer: A) Algae and fungus

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Q:

Who discovered Nitrogen?

A) Faraday B) Heisenberg
C) Hooke D) Rutherford
 
Answer & Explanation Answer: D) Rutherford

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Q:

Which component in tobacco makes it harmful for human consumption?

A) Morphine B) Nicotine
C) Heroin D) None of these
 
Answer & Explanation Answer: B) Nicotine

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Q:

Alveoli are balloon like structures within the ______.

A) lungs B) kidney
C) liver D) heart
 
Answer & Explanation Answer: A) lungs

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