Answer:
Well, Jupiter and Saturn are mostly comprised of Hydrogen and Helium.
Neptune on the other hand is made mostly comprised of Methane.
and Uranus is made of..................................................................................................................................................................................................
Methane as well
Time can vary because sedimentary rocks become magma because of high temperatures and excessive pressure.
Active solar energy is solar panels or other mechanical energy systems from the sun, while passive are things like the sun heating your house from south facing windows (greenhouse affect).
