General Knowledge Questions

Q:

Which of the following occurred in the presence of tetrodotoxin?

A) The number of action potentials decreased. B) The size of the action potential increased.
C) The number of action potentials increased. D) The size of the action potential decreased.
 
Answer & Explanation Answer: A) The number of action potentials decreased.

Explanation:
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Q:

The idea of including the Emergency provisions in the Constitution of india has been borrowed from the_________

A) Constitution of Canada B) Weimar Constitution of Germany
C) Constitution of Ireland D) Constitution of USA
 
Answer & Explanation Answer: B) Weimar Constitution of Germany

Explanation:
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Q:

The power of a lens is measured in:

A) diopters B) aeon
C) lumen D) candela
 
Answer & Explanation Answer: A) diopters

Explanation:
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Filed Under: General Science

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Q:

A by product of involuntary muscle contraction and relaxation is

A) Oxygen B) Water
C) Heat D) Nitrogen
 
Answer & Explanation Answer: C) Heat

Explanation:

A_by_product_of_involuntary_muscle_contraction_and_relaxation_is1537166589.jpg image

When a muscle is contracted and relaxed some amount of heat is released as a by product. 

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Q:

Who among the following received the Nobel Prize Twice in different subjects

A) Madam Curie B) Frederic Sanger
C) Pierre Curie D) John Bardeen
 
Answer & Explanation Answer: A) Madam Curie

Explanation:
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Q:

Which acid is present in tomato?

A) Sulphuric acid B) HCl
C) Both A & B D) Citric acid
 
Answer & Explanation Answer: D) Citric acid

Explanation:

which_acid_is_present_in_tomato1542371895.jpg image

Citric acid is present in tomatoes.

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Q:

What element behaves most like magnesium?

A) Silicon B) Strontium
C) Sulphur D) Tin
 
Answer & Explanation Answer: B) Strontium

Explanation:

We know that, Elements in the same group of the periodic table have similar characteristics.

Here Magnesium and Strontium shared some similar properties because they both belong to the same group. Sr is the chemical symbol for strontium which is a group two element; it has atomic number of 38. 

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Q:

Which of the following is true of a scientific theory?

A) It is only accepted after the person who came up with it has died. B) It is a method or device that applies scientific knowledge for some specific purpose.
C) It generates testable hypotheses, is supported by a large body of evidence, and is broad in scope. D) It must demonstrate the effect of one variable by testing control groups and experimental groups.
 
Answer & Explanation Answer: C) It generates testable hypotheses, is supported by a large body of evidence, and is broad in scope.

Explanation:

A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world. Scientific theories are not ever proved in the sense of being proved to be 100% correct.

 

Examples of some scientific theories are ::

Evolution, gravity, atomic theory, the germ theory of disease, relativity, quantum theory, electromagnetic theory, layered Earth theory, etc...

 

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