If you wanted to observe stars behind a molecular cloud, in what wavelength of light should you observe?
A) ultraviolet
B) visible
C) infrared
D) x-ray
E) gamma ray
C) infrared
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HII regions are found near stars cooler than 25,000 K because large amounts of ultraviolet photons would totally destroy the hydrogen atoms in the gas
Indicate whether the statement is true or false
In a binary system containing two neutron stars, the objects will ____
a. radiate orbital energy away as gravitational radiation and move farther apart b. radiate orbital energy away as gravitational radiation and move closer together c. exchange mass until their orbital periods become equal d. exchange mass until they are in synchronous rotation e. exchange angular momentum, lengthening the period of the pulsar
There is no real evidence that greenhouse warming could cause abrupt catastrophic changes in climate on Earth
What will be an ideal response?
Areas near a cold ocean or other cold body of water often experience a 'sea breeze' during the late morning, particularly on warm, sunny days. The process of energy transfer most directly associated with the development of the sea breeze is
1.conduction. 2.convection. 3.radiation. 4.none of these.