Protoplanets of the Jovian planets could have grown very hot from
a. heat from the Sun.
b. radioactivity of light elements such as hydrogen and helium.
c. the infall of material at high velocity.
d. tidal forces due to the Sun.
e. collisions with large planetesimals.
Question 2
Condensation in the solar nebula probably led to the formation of
a. icy grains beyond the present orbit of Jupiter.
b. metallic grains near the present orbit of Mercury.
c. silicate grains near the present orbit of Earth.
d. icy grains beyond the present orbit of Jupiter, metallic grains near the present orbit of Mercury, and silicate grains near the present orbit of Earth.
e. None of the other choices are correct.
The greenhouse effect: heat trapping by earth's atmosphere.
Heat Shock Proteins
Zone for Habitable Planets
Heat Index
Mechanisms of Heat Transfer
Laboratory-Grown Stem Cells