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

Author Question: Due to the cycle of precession, in 12,000 years, which star will replace Polaris as the guiding ... (Read 84 times)

ashley

  • Hero Member
  • *****
  • Posts: 584
Due to the cycle of precession, in 12,000 years, which star will replace Polaris as the guiding North Star?
 
  a. Betelgeuse
  b. Sirius
 c. Vega
 d. Rigel
 e. Spica

Question 2

What is the cause for the slow movement of reference marks, such as the celestial poles and equator, to move across the sky?
 
  a. precession
 b. evolution
 c. climate change
 d. continental drift
 e. angular revolution



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

frejo

  • Sr. Member
  • ****
  • Posts: 349
Answer to Question 1

c

Answer to Question 2

a





 

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

For a complete list of videos, visit our video library