A-A+
According to paragraph 3 the heat flow necess
问题详情
According to paragraph 3, the heat flow necessary for the production of geothermal energy
A．is like solar heat on the Earth"s surface
B．happens near tectonic plate boundaries
C．must always be artificially increased
D．may be impractical because of its location Paragraph 3 is marked with an arrow [→].请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析：... areas of high heat flow are associated with plate tectonic boundaries." Choice A is not correct because geothermal heat flow is very low compared with solar heat. Choice C is not correct because, in some areas, heat flow is sufficiently high. Choice D is not correct because geothermal energy is very practical along plate boundaries.
