Questions

Q:

Which is an invention that improved safety for railway passengers?

A) Air brakes B) Refrigerated rail cars
C) Time standardization D) Pullman sleeping cars
 
Answer & Explanation Answer: A) Air brakes

Explanation:

An invention that improved safety for railway passengers is Air brakes. With the use of air brakes using compressed air, become more effective by preventing many train accidents.

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Q:

What is one benefit of not using a predetermined budget for AdWords advertising, compared to radio, print, and TV advertising?

Answer

Online campaigns are highly measurable and may be able to generate an automatic positive ROI. As long as ROI remains positive, it can be strategic to capture all traffic without a predetermined budget.

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Q:

Find the compound amount if $2900 is deposited at 5% interest for 10 years if interest is compounded daily

A) 4781.13 B) 5781
C) 3456 D) 4567
 
Answer & Explanation Answer: A) 4781.13

Explanation:

M=P(1+i/365)^365n

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Q:

The closest algal relatives of land plants are

A) charophytes B) chrysophytes
C) rhodophytes D) bacillariophytes
 
Answer & Explanation Answer: A) charophytes

Explanation:

The charophytes are the extant group of green algae that are most closely related to modern land plants.

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Q:

The functional unit of the nervous system is the

A) Nephrons B) Axons
C) Neurons D) All of the above
 
Answer & Explanation Answer: C) Neurons

Explanation:

Neurons are the functional units of the nervous system in the body.

the_functional_unit_of_the_nervous_system_is_the1535026518.png image

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Q:

Reduction of oxygen which forms water occurs during

A) Respiration B) Photosynthesis
C) Both A & B D) Neither photosynthesis nor respiration
 
Answer & Explanation Answer: A) Respiration

Explanation:
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Q:

The concept of carbon credit originated from

A) G-8 Summit, Hciligendamm B) Earth Summit, Rio de Janeiro
C) Montreal Protocol D) Kyoto Protocol
 
Answer & Explanation Answer: D) Kyoto Protocol

Explanation:

The concept of carbon credit for manufacturers originated with the Kyoto Agreement (Protocol) of 1997.

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Q:

A boy is swinging a ball attached to a string in a horizotal circle. If the string snaps 

A) the ball will travel towards the center of the circle and fall down B) it will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down
C) it will fall down at the same place where the string breaks D) None of these
 
Answer & Explanation Answer: B) it will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down

Explanation:

The centripetal force having been removed the body cannot  execute the curved path

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