Question 1
What geologic structure is created when one tectonic plate dives below another?
◦ continental crust
◦ ocean trenches
◦ convergent plate boundary
◦ subduction zone
◦ divergent plate boundary
Question 2
What is a problem with power generated by wind or sun?
◦ It can create power surges that endanger the power grid.
◦ It requires constant sun or wind.
◦ Energy cannot be transferred from sunny or windy areas to other areas.
◦ It results in extensive disruption of local power sources.
◦ governments rarely give tax subsidies to renewable energy industries