Q:

Who began public health and sanitation systems?

A) Mexicans	B) Egyptians
C) Romans	D) Chinese

Answer & Explanation Answer: C) Romans

Explanation:

Romans (753 BC - AD 410) began public health and sanitation systems.

Romans established the first public health and sanitation systems by building sewers and aqueducts.

Romans1531898190.jpg image

They also treated diseases with diet, exercise and meditation.

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Filed Under: World History
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Q:

As the object covers equal distances in equal intervals of time, it is said to be in ____________ motion.

A) uniform	B) linear
C) translational	D) equilibrium

Answer & Explanation Answer: A) uniform

Explanation:

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Filed Under: Physics
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Q:

Which of the following is true of enzymes?

A) Enzymes lowers the activation energy for the chemical reaction	B) Enzymes speed up the rate of a chemical reaction
C) Both A & B	D) Neither A nor B

Answer & Explanation Answer: C) Both A & B

Explanation:

Enzymes are macromolecular biological catalysts. Enzymes accelerate chemical reactions. The molecules upon which enzymes may act are called substrates and the enzyme converts the substrates into different molecules known as products.

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Q:

What are cathode rays made of?

Answer

Cathode rays made of beams of electrons.

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Subject: Chemistry Exam Prep: AIEEE , Bank Exams
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Q:

Which statement correctly changes the next extent size?

A) ALTER TABLE customer MODIFY NEXT SIZE 300	B) ALTER TABLE customer MODIFY NEXT EXTENT SIZE 300
C) ALTER TABLE customer MODIFY EXTENT SIZE 300	D) ALTER TABLE customer NEXT SIZE 300

Answer & Explanation Answer: A) ALTER TABLE customer MODIFY NEXT SIZE 300

Explanation:

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Filed Under: IBM Certification

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Q:

Very small insoluble particles in a liquid may be separated from it by using

A) crystallization	B) fractional distillation
C) centrifugation	D) decantation

Answer & Explanation Answer: C) centrifugation

Explanation:

Sometimes the solid particles in a liquid are very small and can pass through a filter paper. For such particles, the filtration technique cannot be used for separation. Such mixtures are separated by centrifugation.

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Filed Under: General Science
Exam Prep: Bank Exams

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Q:

Which of the following is a chemical property?

A) Reactivity	B) Solubility
C) Density	D) All of the above

Answer & Explanation Answer: A) Reactivity

Explanation:

The ability of two or more substances to combine to form other substances is called Reactivity.

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Q:

Which of the following programme is launched to develop basic infrastucture in the country

A) Bharat Nirman Programme	B) Technical Mission
C) Special Economic Zones	D) None of these

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