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Q:

Monocarpic plants are those that produce fruits ...............during the life of the plant

A) once B) thrice
C) many times D) twice
 
Answer & Explanation Answer: A) once

Explanation:

Plants are of different types. Some grow well and then produce fruits before they die. In other words they fruit only once in their life. Such plants are said to be monocarpic. Other plants produce fruits every season. These are called polycarpic plants.

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Filed Under: Biology

Q:

The disease Goitre is caused in persons who do not have in their diet sufficient

A) calcium B) sodium
C) iodine D) iron
 
Answer & Explanation Answer: C) iodine

Explanation:

Goitre is characterized by the swelling of the neck region. This is due to the enlargement of the thyroid gland which secretes hormone thyroxine. Thyroxine has iodine as an integral part of it. If there is not sufficient iodine in one's  diet, the thyroid gland swells up.

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Filed Under: Biology

Q:

The insects do not have blood pigments because 

A) there is no blood B) tissues have pigments
C) blood does not have a respiratory function D) pigments are elsewhere
 
Answer & Explanation Answer: C) blood does not have a respiratory function

Explanation:

The blood of some invertebrate animals like the earthworm is red due to haemoglobin pigment, but the pigment is dissolved in the plasma. In vertebrates the same pigment is found in the red corpuscles and not in the plasma.

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Filed Under: Biology

Q:

Which of the following organelle is known as the 'Power House' of the cell?

A) Golgi Bodies B) Ribosomes
C) Mitochondria D) None of these
 
Answer & Explanation Answer: C) Mitochondria

Explanation:

Mitochondria are known as 'Power House' of the cell because they produce energy in the form of ATP.

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Filed Under: Biology

Q:

Harmful bacteria in drinking water cannot be destroyed by 

A) Chlorination B) boiling
C) adding caustic soda D) ozonisation
 
Answer & Explanation Answer: C) adding caustic soda

Explanation:

Water containing caustic soda cannot be used for drinking

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Filed Under: Chemistry

Q:

Cell phone users have found that tariff plans are not as attractive as promoted by telecom companies and complained to regulatory authority about the same.

 

Courses of action:

I. The regulatory authority should direct telecom companies to be trasparent on the tariff structure of all plans

II. The government should restrict the number of telecom companies operating in the country.

A) If only course of action I follows B) If only course of action II follows
C) If either course of action I or II follows D) If both courses of action I and II follow
 
Answer & Explanation Answer: A) If only course of action I follows

Explanation:

Being " not as attractive as promoted " is a clear case of  hiding things. Hence " transparency " is the answer to the problem and I folloes. II goes against the spirit of free market and is not relevant to the problem either.

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Filed Under: Statement and Courses of Action

Q:

Indigenous tribes living near Amazon forests are cutting down trees to cover their basic needs , thus severely affecting the ecological balance in the area.

 

Courses of action:

I. All the tribes living near the Amazon rain forests Should be forced to shift to urban areas of the country.

II. The tribes should be allowed to continue doing so as they cut down trees for their basic needs and not for commercial purposes.

A) If only course of action I follows B) If only course of action II follows
C) If either course of action I or II follows D) If both courses of action I and II follow
 
Answer & Explanation Answer: D) If both courses of action I and II follow

Explanation:

I is simply absurd. But even II is not the solution.

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Filed Under: Statement and Courses of Action

Q:

Water table in most parts of the State has gone down to such a level that its extraction for irrigation purposes is not economical any more.

 

Courses of action:

I. Extraction of ground water for any purpose in the State should be banned for some time in order to replenish the water table.

II. The Government should make provisions for alternative methods of irrigation so that the farmers are not compelled to use ground water.

A) If only course of action I follows B) If only course of action II follows
C) If either course of action I or II follows D) If both courses of action I and II follow
 
Answer & Explanation Answer: B) If only course of action II follows

Explanation:

I is impractical. Water is essential for life to go on. II is sensible, especially when using ground water is proving to be uneconomical

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Filed Under: Statement and Courses of Action