This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why are metal ores so valuable? A) They are sources of naturally occurring gold. B) Metals can ... (Read 151 times)

j.rubin

  • Hero Member
  • *****
  • Posts: 557
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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

abctaiwan

  • Sr. Member
  • ****
  • Posts: 355
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

D


j.rubin

  • Member
  • Posts: 557
Reply 2 on: Aug 27, 2018
Wow, this really help

Kedrick2014

  • Member
  • Posts: 359
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Chinese workers on a railway in the far West. “Without them,” Leland Stanford, president of the Cent Chinese workers on a railway in the far West. “Without them,” Leland Stanford, president of the Cent
Selected Vitamins: Food Sources, Functions, and Deficiency and Toxicity Symptoms (continued) Selected Vitamins: Food Sources, Functions, and Deficiency and Toxicity Symptoms (continued)
Selected Minerals: Food Sources, Functions, and Deficiency and Toxicity Symptoms Selected Minerals: Food Sources, Functions, and Deficiency and Toxicity Symptoms
Women who are 65 and older have a lower median income from all sources than men in the same age ... Women who are 65 and older have a lower median income from all sources than men in the same age ...
All oily shop cloths should be stored in a metal container equipped with a lid to help prevent ... All oily shop cloths should be stored in a metal container equipped with a lid to help prevent ...
Major Food Sources of Saturated and Trans Fats for Americans Major Food Sources of Saturated and Trans Fats for Americans
Video: Chloroplast Structure & Light Dependent Reactions (Photosystem 1 and 2 Cyclic Electron Flow)

For a complete list of videos, visit our video library