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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:

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:

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:

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 = 12mV2  or 

K.E ∝V2, 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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Filed Under: Chemistry
Exam Prep: AIEEE

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Q:

Where is the Devils Tower located?

A) black hills of crook county B) belgium
C) colombia D) Georgia
 
Answer & Explanation Answer: A) black hills of crook county

Explanation:

Devils tower is located in black hills of crook county of north eastern whyoming .It was the first declared United States National Monument.

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Q:

Who among the following is NOT a dancer of Odissi?

 

A) Sanjukta Panigrahi   B) Sonal Mansingh  
C) Madhavi Mudgal   D) Yamini Krishnamurthy  
 
Answer & Explanation Answer: D) Yamini Krishnamurthy  

Explanation:
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Q:

A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be

A) a parabola B) a circle
C) a horizontal straight line D) a vertical straight line
 
Answer & Explanation Answer: A) a parabola

Explanation:

Parabola, because when the coin is dropped at a particular point, it has the same velocity as the running train. So by Newton's first law, it continues its motion horizontally with that velocity. But then, it is also pulled down by earth's gravity continuously. In this situation its horizontal motion gives way to the parabolic motion until it reaches the ground.

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Filed Under: Physics

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Q:

In any State of India , Legislative Council can be created or abolished :

A) By the Parliament B) By the president on the recommendation of the Governor of the State
C) By the Governor on the recommendation of the Council of Ministers D) By the Parliament as per resolution passed by the Legislative Assembly of the State
 
Answer & Explanation Answer: D) By the Parliament as per resolution passed by the Legislative Assembly of the State

Explanation:
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