« previous next »

Author Question: What technology do astronomers use to search for extraterrestrial life? a. space observatories b. ... (Read 173 times)

jho37

  • Hero Member
  • *****
  • Posts: 531
on: Jul 27, 2018
What technology do astronomers use to search for extraterrestrial life?
 
  a. space observatories
 b. radio telescopes
 c. refracting telescopes
 d. reflecting telescopes
 e. FM radio and televisions

Question 2

Stromatolites are rock-like columns composed of layers of fossilized ____.
 
  a. bones and tissue
 b. fungi and planets
 c. extremophile protists
 d. photosynthetic algae
 e. single-celled organisms


frre432

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 27, 2018
Answer to Question 1

b

Answer to Question 2

e


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

jho37

  • Hero Member
  • *****
  • Posts: 531
Reply #2 on: Jul 27, 2018
Thanks


frre432

  • Sr. Member
  • ****
  • Posts: 347
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

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?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Cell division in common life cycles Cell division in common life cycles
Spitzer Space Telescope Spitzer Space Telescope
Dust Technology Dust Technology
Mobilize the space between metatarsals with a scissoring action. Hold the toe “knuckles” of ... Mobilize the space between metatarsals with a scissoring action. Hold the toe “knuckles” of ...
Pregnancy Life Pregnancy Life
Video: Calvin Cycle Explained!

For a complete list of videos, visit our video library