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

Author Question: If we use a 24-hour day to represent Earth's history, humans would have existed for the last: a. 1 ... (Read 168 times)

bobbysung

  • Hero Member
  • *****
  • Posts: 519
If we use a 24-hour day to represent Earth's history, humans would have existed for the last:
 a. 1 minute.
  b. 1 hour.
  c. 2 hours.
  d. 5 hours.
  e. 12 hours.

Question 2

The boundaries between the distinct layers found in many sedimentary rocks are called:
 a. foliation.
  b. regolith.
  c. outcrops.
  d. rock cycles.
  e. bedding planes.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

anoriega3

  • Sr. Member
  • ****
  • Posts: 323
Answer to Question 1

A

Answer to Question 2

E





 

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

For a complete list of videos, visit our video library