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

Author Question: The amount of iron on the earth today as compared to the amount of iron 120 years ago (approximately ... (Read 74 times)

Chelseaamend

  • Hero Member
  • *****
  • Posts: 545
on: Aug 27, 2018
The amount of iron on the earth today as compared to the amount of iron 120 years ago (approximately the beginnings of the Industrial Revolution)
 
  A) is less.
  B) is essentially the same.
  C) is more.
  D) cannot be estimated or predicted.

Question 2

Glass can be colored because of the addition of ________ compounds to make a green color.
 
  A) magnesium
  B) chromium
  C) lithium
  D) zinc


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

covalentbond

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

B


Chelseaamend

  • Hero Member
  • *****
  • Posts: 545
Reply #2 on: Aug 27, 2018
Thank you!


covalentbond

  • Sr. Member
  • ****
  • Posts: 336
Reply #3 on: Aug 27, 2018
Always glad to help...


« previous next »
 

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Telomere length is related to the amount of time adults spend in leisure time activity. Source: Ada Telomere length is related to the amount of time adults spend in leisure time activity. Source: Ada
Throughout history, technology has had an impact on families. Today is no exception. Throughout history, technology has had an impact on families. Today is no exception.
An IAC controls idle speed by controlling the amount of air that passes around the throttle plate. ... An IAC controls idle speed by controlling the amount of air that passes around the throttle plate. ...
How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay? How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay?
Astronomy Today, 8/E Astronomy Today, 8/E
Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland
Video: Definitions of stroke volume, preload definition & Factors influencing stroke volume

For a complete list of videos, visit our video library