a. the sun
b. heat left over from the earth’s formation
c. electric currents in the earth’s core
d. radioactivity in the earth’s interior
2007-03-07 14:16:42 · 3 answers · asked by Anonymous in Environment
One homework question could be confusion, multiple questions on the same topic is just laziness. Read your textbook.
2007-03-07 18:18:55 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Hmm thats actual no longer a standard question. B: the warmth left over is definately the explanation for the final public of the warmth it is in our middle right this moment yet D: The radioactivity is the main significant source it is starting to be NEW warmth. the previous warmth leftover is in simple terms nonetheless regularly there. in case you be attentive to it cant be 2 authentic solutions i could probable pass with B because it particularly is the main significant element, yet based what they define by skill of "powering" interior the question it may be D too. -Stigma
2016-11-23 14:30:54 · answer #2 · answered by slagle 4 · 0⤊ 0⤋
Come on. You have four choices, and two of them are riduculous. What is the problem?
2007-03-07 14:20:10 · answer #3 · answered by ttpawpaw 7 · 0⤊ 0⤋