« previous next »

Author Question: Terrestrial planets, like Earth, are made up of rock and metal. a. True b. False Indicate ... (Read 33 times)

tfester

  • Hero Member
  • *****
  • Posts: 534
on: Jul 27, 2018
Terrestrial planets, like Earth, are made up of rock and metal.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

Molecular clouds are mapped using _____ gas instead of the most-abundant hydrogen because itradiates at radio wavelengths more efficiently.
 
  a. oxygen III
 b. oxygen II
 c. helium II
 d. carbon monoxide
  e. carbon dioxide


kristenb95

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jul 27, 2018
Answer to Question 1

True

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Steller sea lions haul out on a rock off the coast of Raspberry Island (Alaska) Steller sea lions haul out on a rock off the coast of Raspberry Island (Alaska)
A true albino squirrel. Note the pink eyes. A true albino squirrel. Note the pink eyes.
Tiny 'Spherules' Reveal Details About Earth's Asteroid Impacts Tiny 'Spherules' Reveal Details About Earth's Asteroid Impacts
The span of Homo sapiens sapiens’ time on earth The span of Homo sapiens sapiens’ time on earth
Hints of Earth’s Early Appearance Hints of Earth’s Early Appearance
When viewed from the Earth, Venus subtends an angle of about 1 arcminute (1/60°) when it is at ... When viewed from the Earth, Venus subtends an angle of about 1 arcminute (1/60°) when it is at ...
Video: Types of synapses - electrical & chemical

For a complete list of videos, visit our video library