According to updated models of the formation of the Solar System, Earth's early atmosphere probably consisted mostly of:
A) hydrogen, ammonia, and methane.
B) neon, argon, and radon.
C) butane, ethane, and hexane.
D) carbon dioxide, nitrogen, and water vapor.
D
Physics & Space Science
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Explain how some stars form in binary systems
What will be an ideal response?
Physics & Space Science
A series LC circuit in a radio is in resonance with AM 1200 kHz. If the radio station is changed to AM 600 kHz, by what factor must the capacitance be multiplied to again achieve resonance?
a. 4 c. 1/2 b. 2 d. 1/4
Physics & Space Science
Uranus' orbital period is 84 years. How far is Uranus from the sun?
What will be an ideal response?
Physics & Space Science
If I want to make a red shirt, I would want the pigment called ________________ to be in the shirt.
a. Cyan b. Red c. Blue d. Yellow
Physics & Space Science