a.lithosphere
b.asthenosphere
c.core
d.crust
2007-12-28 08:50:08 · 4 answers · asked by Alyssa 1 in Science & Mathematics ➔ Earth Sciences & Geology
Y!A frowns on fill in the blank answers.
2007-12-28 09:19:31 · answer #1 · answered by Lady Geologist 7 · 0⤊ 5⤋
i think its b. asthenosphere
The tectonic plates are made up of Earth’s crust and the upper part of the mantle layer underneath. Together the crust and upper mantle are called the lithosphere and they extend about 80 km deep. The lithosphere is broken into giant plates that fit around the globe like puzzle pieces. These puzzle pieces move a little bit each year as they slide on top of a somewhat fluid part of the mantle called the asthenosphere.
2007-12-28 12:57:41 · answer #2 · answered by cai :") 2 · 5⤊ 0⤋
the asthenosphere; it comes from the Greek for "weak layer"
2007-12-28 08:56:15 · answer #3 · answered by kuiperbelt2003 7 · 4⤊ 0⤋
b. Asthenosphere
2007-12-28 08:54:41 · answer #4 · answered by Tom P 6 · 3⤊ 1⤋