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

Author Question: Stromatolites date back to approximately A) 4.6 billion years ago B) 3.5 billion years ago C) ... (Read 103 times)

eruditmonkey@yahoo.com

  • Hero Member
  • *****
  • Posts: 546
on: Jul 27, 2018
Stromatolites date back to approximately
 
  A) 4.6 billion years ago
  B) 3.5 billion years ago
  C) 3.85 billion years ago
  D) 4.0 billion years ago

Question 2

An up quark (u) has a charge +2/3, and a down quark (d) has a charge of -1/3. Which of the following describes a proton?
 
  A) uuu
  B) uud
  C) udd
  D) ddd


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

AmberC1996

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

B


eruditmonkey@yahoo.com

  • Member
  • Posts: 546
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

ktidd

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Shifts between Warm and Cold Periods during the Last 3 Million Years Shifts between Warm and Cold Periods during the Last 3 Million Years
Palette of King Narmer (back), Hierakonpolis, Upper Egypt. Palette of King Narmer (back), Hierakonpolis, Upper Egypt.
Preschool: 3–6 years. Preschool: 3–6 years.
With a fortune of $66 billion, Bill Gates, a cofounder of Microsoft Corporation, is the second ... With a fortune of $66 billion, Bill Gates, a cofounder of Microsoft Corporation, is the second ...
Knuckling effleurage (knuckle to palm) performed on the back. Knuckling effleurage (knuckle to palm) performed on the back.
Major back and shoulder muscles. Major back and shoulder muscles.
Video: SNP Polymorphysim Microarray Chip - How to Test a Person's DNA

For a complete list of videos, visit our video library