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

Author Question: The earliest discovered human tools are dated at about: a. 4.4 million years b. 1.0 million years ... (Read 228 times)

dbose

  • Hero Member
  • *****
  • Posts: 597
on: Aug 11, 2018
The earliest discovered human tools are dated at about:
 
  a. 4.4 million years
 b. 1.0 million years ago
  c. 7.5 million years ago
  d. 2.6 million years ago

Question 2

Evidence suggests that ancient planners designed the city of _____ to have the San Juan River run through it.
 
  a. Macchu Picchu
  b. Tikal
  c. Chichen Itza
  d. Teotihuacan
  e. Tulum


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

duy1981999

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Aug 11, 2018
Answer to Question 1

d

Answer to Question 2

d


dbose

  • Hero Member
  • *****
  • Posts: 597
Reply #2 on: Aug 11, 2018
Thank you!


duy1981999

  • Sr. Member
  • ****
  • Posts: 341
Reply #3 on: Aug 11, 2018
Always glad to help...


« previous next »
 

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

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 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?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

A closer look at the reproductive cycle of human immunodeficiency virus (HIV) A closer look at the reproductive cycle of human immunodeficiency virus (HIV)
Diffusion spectrum MR image of human brain Diffusion spectrum MR image of human brain
The human skeleton The human skeleton
School age (late childhood): 6–12 years, or to puberty. School age (late childhood): 6–12 years, or to puberty.
Replication of human immunodeficiency virus Replication of human immunodeficiency virus
The human chromosome set The human chromosome set
Video: Morphology of a tomato plant

For a complete list of videos, visit our video library