Author Question: The Drake equation calculates N. What is N? A) the number of intelligences in the entire universe ... (Read 53 times)

theo

  • Hero Member
  • *****
  • Posts: 698
The Drake equation calculates N. What is N?
 
  A) the number of intelligences in the entire universe
  B) the number of technical civilizations in our galaxy presently
  C) the number of stars with habitable planets
  D) the number of planets with life in the universe
  E) the number of planets in just our galaxy

Question 2

At which stage in a Sun-like star's life is its core the least dense?
 
  A) Main Sequence
  B) Subgiant Branch
  C) Helium Fusion
  D) Planetary Nebula
  E) White Dwarf



Eunice618

  • Sr. Member
  • ****
  • Posts: 350
Answer to Question 1

B

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

For a complete list of videos, visit our video library