[Answered] How many elements make up most of Earth's crust? A) 4 B) 12 C) 40 D) ...

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Author Question: How many elements make up most of Earth's crust? A) 4 B) 12 C) 40 D) ... (Read 121 times)

crobinson2013

Hero Member
Posts: 535

on: Jul 16, 2018

How many elements make up most of Earth's crust?

A) 4
B) 12
C) 40
D) 100

Question 2

How is the valuable part of an ore mineral removed?

A) by heating the ore in boiling temperatures
B) by breaking its mineral bonds
C) by dissolving the ore in water and acid
D) by using a magnet to remove the metal

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meow1234

Sr. Member
Posts: 333

Reply #1 on: Jul 16, 2018

Answer to Question 1

Answer: B

Answer to Question 2

Answer: B

crobinson2013

Member
Posts: 535

Reply 2 on: Jul 16, 2018

Excellent

sarah_brady415

Member
Posts: 328

Reply 3 on: Yesterday

Great answer, keep it coming

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