Q:

An electron loses potential energy when it

 

A) shifts to a more electronegative atom. B) increases its kinetic energy.
C) shifts to a less electronegative atom. D) increases its activity as an oxidizing agent.
 
Answer & Explanation Answer: A) shifts to a more electronegative atom.

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Q:

The central principle of physiology is

 

A) reflexes B) homeostasis
C) stimulation D) temperature regulation
 
Answer & Explanation Answer: B) homeostasis

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Filed Under: General Science
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Q:

Which statement best describes the formation of diamonds?

 

A) Diamonds form in talc under very high pressure. B) Diamonds form in kimberlites under very high pressure.
C) Diamonds form in kimberlites under very low pressure. D) Diamonds form in talc under very low pressure.
 
Answer & Explanation Answer: B) Diamonds form in kimberlites under very high pressure.

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Q:

Meteorology is the study of

 

A) The atmosphere B) Outer space
C) Landforms D) The oceans
 
Answer & Explanation Answer: A) The atmosphere

Explanation:

Meteorology is a branch of science that deals with the study of the atmosphere that focuses on weather processes and forecasting.

 

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Q:

A sarcomere is best described as a

 

A) fixed structural unit within a myofibril bounded by Z lines. B) moveable structural unit within a myofibril bounded by H zones.
C) moveable structural unit within a myofibril bounded by Z lines. D) fixed structural unit within a myofibril bounded by A bands.
 
Answer & Explanation Answer: C) moveable structural unit within a myofibril bounded by Z lines.

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Filed Under: Biology
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Q:

What information does a supply schedule provide

 

A) It shows the supply for a product at various prices B) It shows the supply for different products at different prices
C) It shows the supply for a product at a single price point D) None of the above
 
Answer & Explanation Answer: A) It shows the supply for a product at various prices

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Q:

ΔDEF is right angled at E. If cosecD = 25/24, then what is the value of cosF ?

 

A) 25/7   B) 24/7  
C) 24/25   D) 7/24
 
Answer & Explanation Answer: C) 24/25  

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Q:

ΔDEF is right angled at E. If m∠F = 30 deg, then find the value of (sinD - 1/3).

A) -1/2√3   B) (3√3-2)/6  
C) (√2-√3)/√6   D) (2√2-1)/√2
 
Answer & Explanation Answer: B) (3√3-2)/6  

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