« previous next »

Author Question: About 20 out of the thousands of known mineral species make up the bulk of the Earth's crust. ... (Read 38 times)

ghost!

  • Hero Member
  • *****
  • Posts: 560
on: Jul 15, 2018
About 20 out of the thousands of known mineral species make up the bulk of the Earth's crust. Indicate whether the statement is true or false.

Question 2

Oxygen and silicon alone comprise 75 of crustal rocks by weight. Indicate whether the statement is true or false.


zacnyjessica

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 15, 2018
Answer to Question 1

T

Answer to Question 2

T


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Using the Ti plasmid and Agrobacterium tumefaciens to make transgenic plants Using the Ti plasmid and Agrobacterium tumefaciens to make transgenic plants
Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror
Mining Mineral Resources Mining Mineral Resources
Earth’s orientation Earth’s orientation
Formation of Continental Crust Formation of Continental Crust
Earth 340 Million Years Ago Earth 340 Million Years Ago
Video: Congenital Heart Defects Animation

For a complete list of videos, visit our video library