At the end of which era did the dinosaurs become extinct? A. Jurassic
B. Mesozoic
C. Paleozoic
D. Cenozoic

What is one energy transformation that is taking place in the photo? radiant energy to thermal energy thermal energy to nuclear energy chemical energy to thermal energy radiant energy to chemical energy

Which of the following forest management practices is best for reestablishing areas of forest?

The earth's oceans are made up of chlorine, and trace elements. a) carbon, oxygen b) oxygen, silicon c) hydrogen, oxygen d) nitrogen, oxygen