Questions

Q:

The sensation of sound persists in the human brain for about:

A) 0.5 sec B) 0.2 sec
C) 0.1 sec D) 1 sec
 
Answer & Explanation Answer: C) 0.1 sec

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Q:

What did Edward Jenner pioneer?

A) Vaccination B) Electrocution
C) Dialysis D) Open heart surgery
 
Answer & Explanation Answer: A) Vaccination

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Filed Under: General Science
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Q:

Which of the following does NOT contribute to sparkling of diamonds?

A) Total Internal Reflection B) High Refractive Index of Diamonds
C) Dispersion D) Low Refractive Index of Diamonds
 
Answer & Explanation Answer: D) Low Refractive Index of Diamonds

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Filed Under: Physics
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Q:

If a ball is thrown vertically upwards with a velocity of 40 m/s, then what will be the magnitude of its displacement after 6 s?

A) 80 m B) 40 m
C) 60 m D) 20 m
 
Answer & Explanation Answer: C) 60 m

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Filed Under: Physics
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Q:

___ is not a chemical change.

A) Cooking an egg B) Melting an ice cube
C) Baking a cake D) Rotting Bananas
 
Answer & Explanation Answer: B) Melting an ice cube

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Filed Under: Chemistry
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Q:

The state of matter can be changed into another state by changing the

A) Volume B) Density
C) Shape D) Temperature
 
Answer & Explanation Answer: D) Temperature

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Filed Under: Chemistry
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Q:

What temperature does bacteria grow quickest at

A) 40°F and 140°F B) 14°C and 90°C
C) 80°F and 140°F D) None
 
Answer & Explanation Answer: A) 40°F and 140°F

Explanation:

Most bacteria will grow rapidly between 4°C and 60°C (40°F and 140°F).

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Filed Under: Biology
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Q:

The skin, the lining of the mouth, the lining of the blood vessels, lung alveoli and kidney tubules are all made of which type of tissue?

A) Epithelial tissue B) Connective tissue
C) Muscular tissue D) Nervous tissue
 
Answer & Explanation Answer: A) Epithelial tissue

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Filed Under: Biology
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