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Q:

Which of the following is true about veins?

A) Veins carry blood away from the heart, while arteries carry blood to the heart. B) Veins are more muscular than arteries.
C) Veins have valves; arteries do not. D) Veins have a smaller diameter lumen than arteries.
 
Answer & Explanation Answer: C) Veins have valves; arteries do not.

Explanation:

Veins are blood vessels that carry blood toward the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood to the heart. In contrast to veins, arteries carry blood away from the heart.

 

Veins are less muscular than arteries and are often closer to the skin. There are valves in most veins to prevent backflow.

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams
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Q:

Count function in SQL returns the number of

A) groups B) values or rows
C) columns D) distinct values
 
Answer & Explanation Answer: B) values or rows

Explanation:

Count function in SQL returns the number of values or rows.

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Filed Under: Oracle Certification
Job Role: Database Administration , IT Trainer

Q:

The belief in one god is called

A) Polytheism B) Monotheism
C) Holytheism D) None
 
Answer & Explanation Answer: B) Monotheism

Explanation:

Belief in the existence of one god, or in the oneness of God is called Monotheism.

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Filed Under: General Awareness
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Q:

Which of the following is a renewable source of energy

A) Natural gas B) Coal
C) Wind D) Oil
 
Answer & Explanation Answer: C) Wind

Explanation:

The energy sources that are constantly being replenished, such as sunlight, wind, and water. This means that we can use them as much as we want, and we do not have to worry about them running out. Additionally, renewable energy sources are usually much more environmentally friendly than fossil fuels. Overall, they release very few chemicals, like carbon dioxide, that can harm the environment.


Most of this energy comes from fossil fuels, such as coal, oil, and natural gas. These are nonrenewable energy sources, which means that if we use them all up, we can never get more during our lifetime. Fossil fuels also contribute greatly to global climate change by releasing carbon dioxide into the air when they are burned.

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Filed Under: Physics
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Q:

A government subsidy to the producers of a product

A) reduces product demand B) increases product supply
C) reduces product supply D) increases product demand
 
Answer & Explanation Answer: B) increases product supply

Explanation:
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Filed Under: Indian Economy
Exam Prep: AIEEE , Bank Exams , CAT
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Q:

Which choice best describes the polarity of BrF5?

A) nonpolar bonds / nonpolar molecule B) nonpolar bonds / polar molecule
C) polar bonds / polar molecule D) polar bonds / nonpolar molecule
 
Answer & Explanation Answer: C) polar bonds / polar molecule

Explanation:
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Filed Under: Chemistry
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Q:

Which of the following is not an enzyme?

A) Oxytocin B) Trypsin
C) Pepsin D) Ptyalin
 
Answer & Explanation Answer: A) Oxytocin

Explanation:

Oxytocin is a mamallian hormone and also acts as neuro transmitter in the brain.

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Filed Under: Biology
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Q:

What is the value of 28 tens?

A) 28 B) 2
C) 2800 D) 280
 
Answer & Explanation Answer: D) 280

Explanation:

Here asked for the value of 28 tens

=> 28 x 10 = 280.

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Filed Under: Arithmetical Reasoning
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