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
2007-03-12 15:48:08 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
Not that easy. Radioactivity in the earth's core heats up the core. The hot core heats up the mantle which has convective currents which drive the plates which then run into each other and cause many exciting events. (I live near Mt St Helens.)
2007-03-12 19:26:20 · answer #1 · answered by smartprimate 3 · 1⤊ 0⤋
Hmm thats certainly no longer an undemanding question. B: the warmth left over is definately the reason in the back of maximum folk of the warmth this is in our center on the instant yet D: The radioactivity is the biggest source this is starting to be NEW warmth. the old warmth leftover is only nonetheless regularly there. in case you be attentive to it cant be 2 spectacular solutions i might probably elect B as this is the biggest element, yet based what they define via "powering" in the question it would be D too. -Stigma
2016-11-24 23:42:09 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Above the earth surface the sun rays influencing the whether pattern. Under the earth it is the magma that is making all the changes even the earthquakes.
2007-03-13 00:10:42 · answer #3 · answered by A.Ganapathy India 7 · 0⤊ 1⤋
Techtonic shift and b.
2007-03-12 15:53:11 · answer #4 · answered by Anonymous · 0⤊ 1⤋