Questions

Q:

Data collected to date indicate that

A) New species of bacteria may be discovered in wild animals. B) Humans and marine mammals cannot be infected by the same pathogens.
C) Marine mammals do not get infectious diseases D) None of the above
 
Answer & Explanation Answer: D) None of the above

Explanation:
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Filed Under: General Science
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1 2095
Q:

Percentage of freshwater on earth surface

A) 3% B) 4%
C) 0.3% D) 69%
 
Answer & Explanation Answer: B) 4%

Explanation:

About 71% of the earth's surface is covered with water. In that 71% only 4% of water is a fresh water.

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Filed Under: General Awareness
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1 2095
Q:

Jatra is a traditional theatre form of which of the following states of India?

A) Maharashtra B) Bihar
C) Andhra Pradesh D) West Bengal
 
Answer & Explanation Answer: D) West Bengal

Explanation:

Jatra is a traditional theatre form of the state West Bengal in India.

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0 2095
Q:

What element is used to disinfect swimming pools?

A) Fluorine B) Chlorine
C) Bromine D) Sulphur
 
Answer & Explanation Answer: B) Chlorine

Explanation:
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5 2095
Q:

Protists and bacteria are grouped into different domains because

A) protists have a membrane-bounded nucleus, which bacterial cells lack. B) protists eat bacteria
C) bacteria decompose protists D) protists are photosynthetic
 
Answer & Explanation Answer: A) protists have a membrane-bounded nucleus, which bacterial cells lack.

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Filed Under: Biology
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1 2095
Q:

Which two functional groups are always found in amino acids?

A) Carbonyl and amine B) Ketone and amine
C) Amine and carboxyl D) Aldehyde and amine
 
Answer & Explanation Answer: C) Amine and carboxyl

Explanation:

The two functional groups Amine and carboxyl groups are always found in amino acids.

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4 2095
Q:

In case of a standard hydrogen electrode

A) absolute electrode potential is not zero B) absolute electrode potential is zero
C) both absolute and standard electrode potential values are zero D) electrode potential is zero only at 25 deg C
 
Answer & Explanation Answer: A) absolute electrode potential is not zero

Explanation:

The Standard hydrogen electrode (abbreviated SHE), is a redox electrode which forms the basis of the thermodynamic scale of oxidation-reduction potentials. Its absolute electrode potential is estimated to be 4.44 ± 0.02 V at 25 °C, but to form a basis for comparison with all other electrode reactions, hydrogen's standard electrode potential (E0) is declared to be zero volts only at 298.

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Filed Under: Chemistry
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1 2094
Q:

What is the chemical formula of aluminium nitride?

A) AlN B) Al2N
C) AlN2 D) AlN3
 
Answer & Explanation Answer: A) AlN

Explanation:
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Filed Under: Chemistry
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1 2094