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 26 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
Excellent

bimper21

  • Member
  • Posts: 309
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Examples of cell types derived from ectoderm, mesoderm, and endoderm. Examples of cell types derived from ectoderm, mesoderm, and endoderm.
Examples of deep-sea corals found in the Sable Gully, 200 km off the coast of Nova Scotia. Examples of deep-sea corals found in the Sable Gully, 200 km off the coast of Nova Scotia.
Clusters and Zones in the Olfactory Bulb Clusters and Zones in the Olfactory Bulb
Types of uterine fibroids. Types of uterine fibroids.
Fill finish processes - Inoculum Preparation & Expansion Fill finish processes - Inoculum Preparation & Expansion
Types of Fractures Types of Fractures
Video: Cataract

For a complete list of videos, visit our video library