
提问人:网友d*******1
发布时间:2022年4月6日 07:46
[单项选择题]
第二篇 Geologists have been studying volcanoes for a long time. Though they have learned a ...The cause for the heat in the interior of the earth is______.
A.radioactive elements
B.the great pressure of the earth
C.not determined
D.the heat remaining from the formation of the earth

