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Q:

Lime is sometimes applied to soil in order to

A) increase the acidity of the soil B) make the soil more porous
C) restore nitrates to the soil D) increase the alkalinity of the soil
 
Answer & Explanation Answer: D) increase the alkalinity of the soil

Explanation:

Lime is sometimes applied to soil in order to increase the acidity of the soil.

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Filed Under: Chemistry
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Q:

In the thermite process, the reducing agent is

A) Chlorine B) Aluminium
C) Silicon D) Iron
 
Answer & Explanation Answer: B) Aluminium

Explanation:

In the thermite process, the reducing agent is Aluminium.

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Q:

Who among the following is the  teen pop singer & musician, over 33 million followers on Twitter?

A) Halle Berry B) Bernardo Bertolucci
C) Justin Bieber D) William Blake
 
Answer & Explanation Answer: C) Justin Bieber

Explanation:
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Filed Under: Famous Personalities

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Q:

What happens the first time buck is beaten?

A) He swears that he'll someday have his revenge on Spitz. B) He learns that he can't get away with stealing another dog's food.
C) He learns he has to obey men, but decides never to surrender inside. D) He has his spirit as well as his body crushed.
 
Answer & Explanation Answer: C) He learns he has to obey men, but decides never to surrender inside.

Explanation:
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Filed Under: General Science
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Q:

Which statement best describes the electronegativity of an element?

A) Electronegativity of an atom is it's ability to produce energy while losing an electron. B) Electronegativity of an atom is it's ability to attract electrons during bond formation.
C) Electronegativity of an atom is it's ability to lose electrons during cation formation. D) Electronegativity of an atom is it's ability to share electrons during a covalent bond formation.
 
Answer & Explanation Answer: B) Electronegativity of an atom is it's ability to attract electrons during bond formation.

Explanation:

Electronegativity, is a chemical property that describes the tendency of an atom to attract a shared pair of electrons (or electron density) towards itself.

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Filed Under: Chemistry
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Q:

Where does glycolysis take place in Eukaryotic cells?

A) Mitochondrial Outer membrane B) Cytoplasm
C) Mitochondrial inner membrane D) None of the above
 
Answer & Explanation Answer: B) Cytoplasm

Explanation:

Glycolysis is the first step of cellular respiration. This process breaks down glucose into two pyruvic acids, and produces 2 ATP and 2 NADH. 

In eukaryotic cells, glycolysis and fermentation reactions occur in the cytoplasm.

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Filed Under: Biology
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Q:

What property of matter is momentum related to?

A) mass B) velocity
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

At any given speed, momentum is directly proportional to mass of an object.

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Filed Under: Physics
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Q:

Which is the best definition of activation energy?

A) the energy required to break the bonds of reactant molecules B) the energy required to end a chemical reaction
C) the energy required to bind a substrate to an active site D) the energy required to re-form bonds in product molecules
 
Answer & Explanation Answer: A) the energy required to break the bonds of reactant molecules

Explanation:

Activation energy is a minimum amount of energy that required for the chemical reaction to happen or to take place.

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Filed Under: Chemistry
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