Questions

Q:

Coral reefs are formed by _____

A) volcanic rocks B) marine sediments
C) chlorine material precipitated from sea water D) tiny colonial marine animals which construct limestone skeleton material
 
Answer & Explanation Answer: D) tiny colonial marine animals which construct limestone skeleton material

Explanation:
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Filed Under: World Geography

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Q:

The greenhouse effect is caused by

A) Deforestation B) Burning of Fossil Fuels
C) Increase in Population D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

The major greenhouse gases (GHG’s) solely responsible for greenhouse effect are Carbon dioxide, Ozone, Methane and Water vapor. Although these gases comprise 1% of our atmosphere, they act like a thick warm blanket outside that surrounds this planet and regulate climate control. Greenhouse effect is not bad. In fact, it is needed for all of us to survive on planet Earth. In short, the greenhouse effect is nothing but a naturally occurring process designed by nature that aids in heating earth’s surface and helps to maintain ecological balance.

Now, while some of that heat dissipates into space, some of it burns along the atmosphere, and some of it penetrates the atmosphere and finds its way into the lower atmosphere and the planet’s surface. This in turn raises the average temperature of the Earth. Therefore, the increase in the Earth’s surface temperature due to increase in the number of greenhouse gases leads to global warming.

 

Causes of Green House Effects ::

 

* Burning of Fossil Fuels

* Deforestation 

* Increase in Population

* Farming

* Industrial Waste and Landfills.

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Filed Under: General Awareness
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Q:

Reduction of oxygen which forms water occurs during

A) Respiration B) Photosynthesis
C) Both A & B D) Neither photosynthesis nor respiration
 
Answer & Explanation Answer: A) Respiration

Explanation:
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Filed Under: Chemistry
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Q:

Database is a collection of concepts that can be used to describe the structure of a database

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

Database provides necessary means to achieve this abstraction. By structure of a database we mean the data types, relations, and constraints that should hold on the data.

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Subject: Database
Job Role: Database Administration

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Q:

Which is the only host team to win the ICC(50 over) Cricket World Cup

A) South Africa B) India
C) Australia D) West Indies
 
Answer & Explanation Answer: B) India

Explanation:
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Filed Under: Sports

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Q:

The quotation ' Some of born great , Some achieve greatness, and some have greatness, thrust upon them ' is atributed to

A) Bertrand Russell B) Abraham Lincoln
C) William Shakeshpare D) George Orwell
 
Answer & Explanation Answer: C) William Shakeshpare

Explanation:
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Filed Under: Books and Authors

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Q:

The size of gear is usually specified by

A) pitch circle diameter B) diametral pitch
C) pressure angle D) circular pitch
 
Answer & Explanation Answer: A) pitch circle diameter

Explanation:

The size of gear is usually specified by pitch circle diameter.

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Filed Under: Physics
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Q:

The inherited traits of an organism are controlled by

A) DNA B) Enzymes
C) Nucleotides D) RNA
 
Answer & Explanation Answer: A) DNA

Explanation:

The inherited traits of an organism are controlled by DNA molecules.

 

The traits an organism displays are ultimately determined by the genes it inherited from its parents, in other words by its genotype. Animals have two copies of all their chromosomes, one from each parent.

 

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Filed Under: Biology
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