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

Author Question: How old is the oldest known mineral, a zircon crystal, on Earth? A) 13.7 billion years old B) ... (Read 72 times)

gbarreiro

  • Hero Member
  • *****
  • Posts: 566
on: Jul 15, 2018
How old is the oldest known mineral, a zircon crystal, on Earth?
 
  A) 13.7 billion years old
  B) 4.6 billion years old
  C) 4.4 billion years old
  D) 2.657 billion years old

Question 2

Where is the oldest known rock on Earth located?
 
  A) Ural Mountains, Russia
  B) Slave Craton, Alberta, Canada
  C) Gobi Desert, Mongolia
  D) Dharwar Craton, India


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Joc

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 15, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: B


gbarreiro

  • Member
  • Posts: 566
Reply 2 on: Jul 15, 2018
Great answer, keep it coming :)

CAPTAINAMERICA

  • Member
  • Posts: 325
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Your heart beats over 36 million times a year.

Abundant cave art after about 30,000 years ago is evidence of the importance of symbolic behavior fo Abundant cave art after about 30,000 years ago is evidence of the importance of symbolic behavior fo
The 2012 U.S. presidential campaign rang with “get tough” cries to end Iran’s nuclear capacity and c The 2012 U.S. presidential campaign rang with “get tough” cries to end Iran’s nuclear capacity and c
Crystal structures of RNA polymerases Crystal structures of RNA polymerases
Climate change occurs over millions of years Climate change occurs over millions of years
Approximately 40 percent of farmers in the United States are 55 years old or older Approximately 40 percent of farmers in the United States are 55 years old or older
Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland
Video: Types of energy transfer reactions: oxidation-reduction reactions and ATP generation reactions

For a complete list of videos, visit our video library