Hey there!
Some interesting facts are:
1. It's the only planet not named after a god
2.It's the third planet from the sun
3.Gravity between the moon and Earth causes the tide on earth
Hope this helps!
Hydrogen. That is how it is continuing to heat, the Hydrogen atoms are fusing to form Hydrogen, but at this point the majority is Hydrogen, eventually it will be majorly Helium, then Carbon.
Answer:
Constructive waves are flat and low in height and have a long wavelength.
Hope this helps