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

Author Question: Sunspots a. are cooler than their surroundings. b. are regions where material is rising from ... (Read 58 times)

Brittanyd9008

  • Hero Member
  • *****
  • Posts: 500
Sunspots
 
  a. are cooler than their surroundings.
  b. are regions where material is rising from below the photosphere.
  c. are the result of convection.
  d. produce spicules.
  e. are generally found near the poles of the Sun during sunspot maximum.

Question 2

Copernicus
 
  a. proposed that the Earth orbited the Sun.
  b. showed how retrograde motion could be explained without epicycles if the planets all orbited the Sun.
  c. neither proposed that the Earth orbited the Sun and showed how retrograde motion could be explained without epicycles if the planets all orbited the Sun.
  d. both proposed that the Earth orbited the Sun and showed how retrograde motion could be explained without epicycles if the planets all orbited the Sun.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lgoldst9

  • Sr. Member
  • ****
  • Posts: 372
Answer to Question 1

a

Answer to Question 2

d




lgoldst9

  • Sr. Member
  • ****
  • Posts: 372

 

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

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

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

For a complete list of videos, visit our video library