Questions

Q:

Which layer of earth is liquid?

A) inner core B) outer mantle
C) outer core D) crust
 
Answer & Explanation Answer: C) outer core

Explanation:

 The crust and the inner core are solid, whereas the outer core and inner mantle are liquid. The outer mantle is semi solid.

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Q:

Which of the following elements has a total of 3 shells with 8 electrons in the last orbit?

A) Ar B) P
C) S D) Al
 
Answer & Explanation Answer: A) Ar

Explanation:
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Filed Under: Chemistry
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Q:

Acid rain is caused by release of ___ and___ into the air.

A) Carbon dioxide and Carbon monoxide B) Sulphur dioxide and nitrogen oxides
C) Oxygen and Water vapour D) Nitrous oxide and Ozone
 
Answer & Explanation Answer: B) Sulphur dioxide and nitrogen oxides

Explanation:
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Q:

In economics secondary effects refer to the

A)  best alternative that must be forgone as the result of a choice. B) immediate and visible intended consequences of a change.
C) impact of the scarcity of resources on the scarcity of the goods that are produced with those resources. D) unintended consequences of a change that are not immediately identifiable but are felt only with time.
 
Answer & Explanation Answer: B) immediate and visible intended consequences of a change.

Explanation:
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Q:

______ is a strong drug that doctors give to people to make them calm or help them sleep.

A) Barbiturate B) Antidepressant
C) Antihistamine D) Beta-Blocker
 
Answer & Explanation Answer: A) Barbiturate

Explanation:
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Filed Under: Biology
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Q:

Why do atoms bond?

A) To reduce potential energy and gain stability B) To make atoms
C) To increase potential energy and lose stability D) To increase potential energy and gain stability
 
Answer & Explanation Answer: A) To reduce potential energy and gain stability

Explanation:
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Q:

Atomic numbers of four elements are as follows : F(9), P(15), Cl(17), Ar(18). Which of the following two elements would be chemically similar?

A) F and Ar B) Cl and P
C) F and P D) F and Cl
 
Answer & Explanation Answer: D) F and Cl

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Q:

Shah Jahan (1627–1657 AD) was the ruler of which dynasty?

A) Mughal B) Nanda
C) Maurya D) Haryanka
 
Answer & Explanation Answer: A) Mughal

Explanation:
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Filed Under: Indian History
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