What is one possible reasons Jupiter and Saturn radiate more energy than they receive from the sun?
a. Magnetic and electric fields heat the planet.
b. Fusion reactions of hydrogen into helium inside the planet provide an additional heat source.
c. The planets are still radiating heat from when they first formed.
d. Friction between the planet and its moons heat the planet.
C
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Indicate whether the statement is true or false
When light of one wavelength from air hits a smooth piece of glass at an angle, which of the following will not occur?
a. reflection b. refraction c. dispersion d. All of the above will occur.
Four of the five answers listed below are necessary characteristics to the life of an individual. Select the exception
a. energy use b. homeostasis c. development d. response to stimuli e. diversity
What is the phase of the Moon shown in the above image?
a. waxing gibbous b. third quarter c. waning gibbous d. first quarter