Mars' atmosphere is mostly carbon-dioxide. Why does it not experience a runaway greenhouse effect like Venus?
A) Its atmosphere is too thin.
B) It does not have enough additional water to magnify the warming.
C) It is protected by its magnetic field.
A
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Photon Energy: Each photon in a beam of light has an energy of 4.20 eV. What is the wavelength of this light? (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J)
A. 321 nm B. 103 nm C. 296 nm D. 412 nm E. 420 nm
When sulfur-35 (Z = 16) decays to chlorine-35 (Z = 17), a(n) __________ is emitted
Fill in the blank(s) with correct word
200 Joules of heat flows into a 35 g sample. If the temperature increases by 10
then what is the heat capacity of the sample, in J/ 
C?
A. 8.0 B. 12 C. 16 D. 20 E. 32
The supernova generated by the explosion of a high mass star fades slowly because of energy generated by ____
a. magnetic fields around the neutron star b. disintegration of iron in the core of the star c. radioactive decay of nickel formed in the expanding shell of the supernova d. fusion of the remaining hydrogen in the star e. matter-antimatter disintegration around the collapsed core