Author Question: How do asteroids appear in long exposure images? A) as complex curving and looping lines B) as ... (Read 54 times)

WhattoUnderstand

  • Hero Member
  • *****
  • Posts: 517
How do asteroids appear in long exposure images?
 
  A) as complex curving and looping lines B) as points of light, like the stars
  C) as resolved disks, like the planets D) as straight lines across a background of stars

Question 2

In the Drake equation (Number of Civilizations = NHP  flife  fciv  fnow), we expect the term fciv to be small if ________.
 
  A) most of the civilizations that have ever existed are still out and about in the galaxy
  B) primitive life is common but intelligent life is rare
  C) most habitable planets never actually get life on them
  D) most civilizations destroy themselves within just a few hundred years of arising



Kaytorgator

  • Sr. Member
  • ****
  • Posts: 345
Answer to Question 1

D

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

For a complete list of videos, visit our video library