This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Given that there are several hundred billion stars in the Milky Way Galaxy and preliminary data from ... (Read 91 times)

drink

  • Hero Member
  • *****
  • Posts: 554
on: Jul 27, 2018
Given that there are several hundred billion stars in the Milky Way Galaxy and preliminary data from exoplanet studies suggest that as many as one in five star systems may have one or more habitable planets, then a reasonable estimate for the number
 
  of habitable planets could be about A) 100 billion or more
  B) 1 billion or more
  C) 100 million or more
  D) 10 million or more

Question 2

Which of the following alternatives to water has a wider temperature range over which it is a liquid?
 
  A) ammonia
  B) methanol
  C) methane
  D) ethane


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bubulittle310@msn.cn

  • Sr. Member
  • ****
  • Posts: 281
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

B


drink

  • Hero Member
  • *****
  • Posts: 554
Reply #2 on: Jul 27, 2018
Thanks


bubulittle310@msn.cn

  • Sr. Member
  • ****
  • Posts: 281
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Hugging Galaxy Hugging Galaxy
Binary Stars Binary Stars
Evolution of Stars Off the Main Sequence Evolution of Stars Off the Main Sequence
Spiral Galaxies Seen Nearly Edge On from the Milky Way Spiral Galaxies Seen Nearly Edge On from the Milky Way
Spiral Galaxies Seen Nearly Edge On from the Milky Way Spiral Galaxies Seen Nearly Edge On from the Milky Way
2006 Data:Top 25 Substances Involved in Human Exposures 2006 Data:Top 25 Substances Involved in Human Exposures
Video: Conjunctivitis

For a complete list of videos, visit our video library