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

Author Question: What practical value did astronomy offer to ancient civilizations? A) It helped them keep track ... (Read 50 times)

tingc95

  • Hero Member
  • *****
  • Posts: 556
What practical value did astronomy offer to ancient civilizations?
 
  A) It helped them keep track of time and seasons, and it was used by some cultures for navigation.
  B) It allowed them to predict eclipses with great accuracy.
  C) It helped them understand our cosmic origins.
  D) It helped them find uses for ancient structures like Stonehenge.

Question 2

The rise of life on the planet Earth some 4 billion years ago was made possible, in part, by the plentiful oxygen in Earth's early atmosphere.
 
  Indicate whether the statement is true or false



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Ksh22

  • Sr. Member
  • ****
  • Posts: 297
Answer to Question 1

A

Answer to Question 2

TRUE




tingc95

  • Member
  • Posts: 556
Reply 2 on: Jul 27, 2018
Excellent


raenoj

  • Member
  • Posts: 340
Reply 3 on: Yesterday
Gracias!

 

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

For a complete list of videos, visit our video library