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Author Question: Why are metal ores so valuable? A) They are sources of naturally occurring gold. B) Metals can ... (Read 107 times)

j.rubin

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on: Aug 27, 2018
Why are metal ores so valuable?
 
  A) They are sources of naturally occurring gold.
  B) Metals can be efficiently extracted from them.
  C) They tend to occur in scenic mountainous regions.
  D) They hold many clues to Earth's natural history.

Question 2

Where are antibiotics obtained?
 
  A) molds
  B) fungi
  C) bacteria
  D) all of the above
  E) only A and B


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abctaiwan

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Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

D


j.rubin

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Reply 2 on: Aug 27, 2018
Great answer, keep it coming :)

AISCAMPING

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Reply 3 on: Yesterday
Excellent

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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

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To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

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