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 General Science Questions

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Q:

Which group in an ecosystem performs photosynthesis?

A) Xylotrophs B) Autotrophs
C) Monotrophs D) Heterotrophs
 
Answer & Explanation Answer: B) Autotrophs

Explanation:

In an ecosystem, Autotrophs performs photosynthesis. Autrophs are those prepare their own food.

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Q:

Mortar is a mixture of

A) cement B) water
C) sand D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Mortar is a mixture of cement or lime as a binder, sand and water.

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Q:

A doctor who specializes in skin diseases

A) Nephrology B) Dermatology
C) Paediatrician D) Rheumatology
 
Answer & Explanation Answer: B) Dermatology

Explanation:
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Q:

The main products of photosynthesis are

A) Oxygen B) Sugar
C) Both A & B D) Carbon dioxide
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The two main products of photosynthesis are sugar and oxygen. Oxygen is emitted as waste product and sugar is used for energy preparation using sun light.

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Q:

Human gametes are produced by

A) Mitosis B) Meiosis
C) Replication D) None of the above
 
Answer & Explanation Answer: B) Meiosis

Explanation:

In humans all reproduction is sexual. It involves joining together haploid gamete cells from each parent with half the normal number of chromosomes to make a new cell containing both parents' genetic material. This is a diploid zygote. The cells from each parent that combine to form the zygote are called gametes.

 

Meiosis produces haploid gametes from a diploid parental cell.

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Q:

Stretching exercises should ideally be performed

A) within a 5-minute time period B) 5 to 7 days a week
C) with a swinging, bouncing motion D) to the point of moderate pain
 
Answer & Explanation Answer: B) 5 to 7 days a week

Explanation:
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Q:

In satellite based communication VSAT stands for

Answer

VSAT stands for Very Small Aperture Terminal is a satellite communications system that serves home and business users.

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Q:

Which of the following is a healthy blood pressure level?

A) 120/80 mmHg B) 140/90 mmHg
C) 90/60 mmHg D) 120/140 mmHg
 
Answer & Explanation Answer: A) 120/80 mmHg

Explanation:

Healthy blood pressure ranges from 120/80 to 90/60.

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