This topic contains a solution. Click here to go to the answer

Author Question: Atoms are held together by A) the electrostatic force of attraction between the protons in the ... (Read 79 times)

eruditmonkey@yahoo.com

  • Hero Member
  • *****
  • Posts: 546
Atoms are held together by
 
  A) the electrostatic force of attraction between the protons in the nucleus and the surrounding electrons
  B) the combined electrostatic force of attraction between the protons and neutrons in the nucleus and the surrounding electrons
  C) the force of gravitational attraction between the protons in the nucleus and the surrounding electrons
  D) the electrostatic force of attraction between the neutrons in the nucleus and the surrounding electrons

Question 2

Carbon isotope evidence from rocks found on an island off the coast of Greenland, although controversial, suggests that life may have
 
  A) existed and was well established by3.4 to 3.5 billion years ago
  B) originated about 3.4 billion years ago
  C) existed 3.85 billion years ago
  D) originated when the Earth formed 4.6 billion years ago



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

akemokai

  • Sr. Member
  • ****
  • Posts: 347
Answer to Question 1

A

Answer to Question 2

C




eruditmonkey@yahoo.com

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


Jsherida

  • Member
  • Posts: 314
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

For a complete list of videos, visit our video library