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Q:

Which of the following is an air pollutant?

A) Sulphur dioxide	B) Ozone
C) Water vapour	D) Nitric oxide

Answer & Explanation Answer: A) Sulphur dioxide

Explanation:

Air pollutants are solid particles, gases, and liquid droplets in the air that can adversely affect ecosystems and the health of humans.

Major ambient air pollutants include toxic metals, polycyclic aromatic hydrocarbons, benzene, particulate matter (PM), nitrogen oxides, sulfur oxides, carbon monoxide, and ozone. Power plants, factories, and vehicle and air traffic are the most important anthropogenic sources of air pollution.

In addition, natural sources such as wildfires and volcanic activity contribute to ambient air pollution.

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Filed Under: General Science
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Q:

Which of the following is true of kinetochores?

A) They are the primary centrosome structures that maintain the attachment of the sister chromatids prior to mitosis.	B) They are the sites at which microtubules attach to chromosomes.
C) They are located at the center of the centrosome and organize tubulin into spindle fibers.	D) They cross at the cell's equator and move against each other, causing the cell to elongate.

Answer & Explanation Answer: B) They are the sites at which microtubules attach to chromosomes.

Explanation:

They are the sites at which microtubules attach to chromosomes.

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Filed Under: Biology
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Q:

Which of the following is not a prime cost?

A) Supervisor's wages	B) Assembly line wages
C) Machine operators wages	D) Direct labor wages

Answer & Explanation Answer: A) Supervisor's wages

Explanation:

The prime cost calculates the use of raw materials and direct labor, but does not factor in indirect expenses, such as advertising and administrative costs.

Supervisor's wages doesn;t come under prime cost.

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Filed Under: Indian Economy
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Q:

Which statement about general education policy is most accurate?

A) It is set by multiple levels of the government.	B) It is determined by local school boards.
C) It is controlled only by the federal government.	D) It provides its funding at the state level.

Answer & Explanation Answer: A) It is set by multiple levels of the government.

Explanation:

General education policy is set by multiple levels of the government like Federal, state and local governments.

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Filed Under: Indian Politics
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Q:

Which superhero shares a name with a town in Turkey?

A) Batman	B) Spiderman
C) Ironman	D) None of the above

Answer & Explanation Answer: A) Batman

Explanation:

Superhero Batman shares a name with an oil production Batman, a town in Turkey.

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Filed Under: General Awareness
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Q:

Vertebrates and tunicates share

A) a notochord and a dorsal, hollow nerve cord.	B) the formation of structures from the neural crest.
C) jaws adapted for feeding.	D) an endoskeleton that includes a skull.

Answer & Explanation Answer: A) a notochord and a dorsal, hollow nerve cord.

Explanation:

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Filed Under: General Science
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Q:

Which memory needs refresh?

A) DRAM	B) SRAM
C) ROM	D) All of the above

Answer & Explanation Answer: A) DRAM

Explanation:

Memory refresh is the process of periodically reading information from an area of computer memory and immediately rewriting the read information to the same area without modification, for the purpose of preserving the information.

DRAM1532669979.png image

Memory refresh is a background maintenance process required during the operation of semiconductor dynamic random-access memory (DRAM), the most widely used type of computer memory.

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Filed Under: Computer
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Q:

What is the purpose of the sigmoid colon?

Answer

Sigmoid colon or pelvic colon is a curved, S-shaped portion of the large intestine which is closest to the rectum and anus.

sigmoid_colon1532669660.jpg image

* It helps to transports fecal matter from the descending colon to the rectum and anus.

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