Q:

The main buffer system of the human blood is

A) H2CO3	B) H2SO4
C) CO2	D) O3

Answer & Explanation Answer: A) H2CO3

Explanation:

the_main_buffer_system_of_the_human_blood_is1556690852.jpg image

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Q:

The Kinetic energy of gas molecules

A) is unaffected by temperature variations	B) decreases with increase of temperature
C) increases with decrease of temperature	D) increases with increase of temperature

Answer & Explanation Answer: D) increases with increase of temperature

Explanation:

Kinetic Energy $K . E = \frac{1}{2} m V^{2}$ or

$K . E \propto V^{2}$ , Where 'm' is the mass and 'v' is the velocity of molecules.

Velocity is proportional to temperature. Hence, KE is proportional to temperature and would increase with temperature.

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Q:

Which of the following properties is found only in ferromagnetic materials ?

A) Susceptibility independent of temperature	B) Point in a particular direction
C) Hysteresis	D) Attracting a magnetic substance

Answer & Explanation Answer: C) Hysteresis

Explanation:

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Q:

What happens when the Quality Score of a keyword is increased?

Answer

The ad may earn a higher average position.

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Subject: Google Certification

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Q:

Who invented Fountain Pen?

A) Sir Frank Whittle	B) John J. Loud
C) Kirkpatrick Macmillan	D) Lewis E. Waterman

Answer & Explanation Answer: D) Lewis E. Waterman

Explanation:

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Q:

What starts with P and ends with E and has thousands of letters?

What_starts_with_P_and_ends_with_E_and_has_thousands_of_letters1533536653.jpg image

Answer

A POST OFFICE is the word which starts with P and ends with E and has thousands of letters which are posted.

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Q:

I am whole but incomplete. I have no eyes, yet I see. You can see, and see right through me. My largest part is one fourth of what I once was.

What am I?

Answer

A Skeleton is what is whole but incomplete, have no eyes, yet can see. We can see, and see right through it. The largest part is one fourth of what it once was i.e body.

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Q:

When is the shortest day observed?

A) June 21	B) December 22
C) June 22	D) December 21

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