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

Author Question: When did the extinction of the dinosaurs occur? A) about 3.5 billion years ago B) about 2 ... (Read 37 times)

JGIBBSON

  • Hero Member
  • *****
  • Posts: 538
When did the extinction of the dinosaurs occur?
 
  A) about 3.5 billion years ago
  B) about 2 billion years ago
  C) 540 million years ago
  D) 65 million years ago
  E) less than 1 million years ago

Question 2

How does a lenticular galaxy differ from a normal spiral galaxy?
 
  A) It has no bulge.
  B) It has an elongated bulge resembling a bar more than a sphere.
  C) It is flatter in shape.
  D) It has no gas or dust.
  E) It has no spiral arms.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dmurph1496

  • Sr. Member
  • ****
  • Posts: 343
Answer to Question 1

D

Answer to Question 2

E





 

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

For a complete list of videos, visit our video library