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

Author Question: Stars of types ________ and ________ are found only in the youngest star clusters. Fill in the ... (Read 69 times)

Metfan725

  • Hero Member
  • *****
  • Posts: 552
on: Jul 27, 2018
Stars of types ________ and ________ are found only in the youngest star clusters.
 
  Fill in the blank(s) with correct word

Question 2

If we detected an Earth-like planet in the habitable zone around another star, how might we learn whether it harbored life?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ynlevi

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 27, 2018
Answer to Question 1

O; B

Answer to Question 2

Future technology (such as large space-based interferometers) will be able to measure the far-infrared spectrum of the planet's atmosphere. Ozone produces a strong feature in the earth's atmosphere and would be detectable in the spectrum of hypothetical extrasolar planet. Ozone is related to oxygen, which is highly reactive and would rapidly disappear (through oxidation) from the atmosphere were it not being constantly replenished. Converting oxides back to oxygen requires energy and such a chemical reaction would not spontaneously. In the earth's case, the energy comes from the sun via photosynthesis in plants. Therefore, the detection of ozone in the spectrum of another planet would be a strong indicator of life.


Metfan725

  • Member
  • Posts: 552
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

JCABRERA33

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

(A) The name and shape of the adult teeth. These teeth represent those found in the right side of th (A) The name and shape of the adult teeth. These teeth represent those found in the right side of th
Types of hemodialysis access sites. Types of hemodialysis access sites.
Classifying the Spectra of Stars Classifying the Spectra of Stars
Summary of T-Cell Types Summary of T-Cell Types
In the retina, there are two types of light receptor cells: Rods are sensitive to differences in lig In the retina, there are two types of light receptor cells: Rods are sensitive to differences in lig
Video: Virtual Enzyme Kinetics & Lineweaver Burk Plot

For a complete list of videos, visit our video library