Exams


Q:

The energy that generates wind comes from what source?

A) Anemometers B) Solar radiation
C) Ocean currents D) None of the above
 
Answer & Explanation Answer: B) Solar radiation

Explanation:

Wind is nothing but the form of moving air. It is caused by the uneven heating of the earth's surface by the sun. Hence, the energy that generates wind comes from solar radiation.

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Filed Under: Physics
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Q:

Name the elements that determine the weather of a place.

A) Humidity B) Temperature
C) Rainfall D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

The elements that determine the weather of a place are temperature, humidity, rainfall and wind.

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Filed Under: General Science
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Q:

Galton’s whistle is most commonly associated with

A) Shark B) Horses
C) Elephants D) Dogs
 
Answer & Explanation Answer: D) Dogs

Explanation:

Galton's whistle is also called as Dogs whistle or silent whistle, is a type of whistle that emits sound in the ultrasonic range, which people cannot hear but some other animals can, including dogs and domestic cats, and is used in their training.

Image result for Galton’s whistle

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Filed Under: Animals and Birds
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Q:

What determines the mass number of an element?

A) Number of protons B) Number of electrons and protons
C) Number of protons and neutrons D) Number of neitrons
 
Answer & Explanation Answer: C) Number of protons and neutrons

Explanation:

The number of protons in an isotope or an atom gives its atomic number whereas the number of protons and neutrons gives its mass number.

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Filed Under: Chemistry
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Q:

A dissecting aortic aneurysm occurs when

A) The inner layers of the aorta become separated B) The aorta ruptures, resulting in profound bleeding
C) All layers of the aorta suddenly contract D) None of the above
 
Answer & Explanation Answer: A) The inner layers of the aorta become separated

Explanation:

A dissecting aortic aneurysm occurs when the inner layers of the aorta become separated.

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Filed Under: Biology
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Q:

In a nucleosome, the DNA is wrapped around

A) ribosomes B) thymine dimer
C) histones D) polymerase
 
Answer & Explanation Answer: C) histones

Explanation:

in_a_nucleosome_the_dna_is_wrapped_around1559212136.png image

In a nucleosome, the DNA is wrapped around a protein called histones and area in between them.

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Filed Under: Biology
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Q:

What is the heaviest internal organ in the human body?

A) Skin B) Lungs
C) Heart D) Liver
 
Answer & Explanation Answer: D) Liver

Explanation:

The liver is a large, meaty organ that sits on the right side of the belly. It is the largest & heaviest internal organ in the human body.

 

What_is_the_heaviest_internal_organ_in_the_human_body1557835175.jpg image

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Filed Under: Biology
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Q:

With the establishment of Grameen Bank in which of the following countries in 1983 is micro credit considered to have been originated?

A) Bangladesh B) Afghanistan
C) Combodia D) India
 
Answer & Explanation Answer: A) Bangladesh

Explanation:

Grameen Bank is a microfinance and community development bank first started in Bangladesh in the year 1983. By the name itself, it is mainly for the village people to give small loans (microcredit).

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Filed Under: General Awareness
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