Q:

Which one of the following oxides of Nitrogen is also known as Laughing Gas?

A) NO2	B) N2O5
C) NO	D) N2O

Answer & Explanation Answer: D) N2O

Explanation:

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Q:

______ is a thyroid hormone which controls the balance of calcium in the body.

A) Calcitonin	B) Thyroxine
C) Calmodulin	D) all of these

Answer & Explanation Answer: A) Calcitonin

Explanation:

Calcitonin is 32-amino acid linear polypeptide hormone that is produced in humans primarily by the parafollicular cells of the thyroid, and in many other animals in the ultimopharyngeal body. It acts to reduce blood calcium, opposing the effects of parathyroid hormone.

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Q:

__________ is the interaction in which one species benefits and the other is neither harmed nor benefited.

A) Predation	B) Commensalism
C) Competition	D) Parasitism

Answer & Explanation Answer: B) Commensalism

Explanation:

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Q:

What is the effective resistance (in Ω) of two resistors 12 Ω and 24 Ω connected in parallel?

A) 36	B) 8
C) 16	D) 72

Answer & Explanation Answer: B) 8

Explanation:

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Q:

What will be the value of the kinetic energy (Ek) of a moving body with mass m, if its speed is doubled from v to 2v?

A) 1/2 Ek	B) 4 Ek
C) There will be no change in Ek	D) 2 Ek

Answer & Explanation Answer: B) 4 Ek

Explanation:

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Q:

What is the duration of the world’s shortest X–ray laser has been successfully created by the scientists?

A) 39 nanoseconds	B) 43 attoseconds
C) 15 picoseconds	D) 57 microseconds

Answer & Explanation Answer: B) 43 attoseconds

Explanation:

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Q:

TCP in computer science stands for?

A) Transmission Control Protocol	B) Total Control Protocol
C) Technology Control Protocol	D) Transfer Control Protocol

Answer & Explanation Answer: A) Transmission Control Protocol

Explanation:

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Q:

Mount Semeru, an active volcano, located in

A) Africa	B) New Zealand
C) Indonesia	D) Myanmar

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