[Answered] The amount of iron on the earth today as compared to the amount of iron 120 years ago (approximately ...

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Author Question: The amount of iron on the earth today as compared to the amount of iron 120 years ago (approximately ... (Read 57 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

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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...

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