Answer: Plate tectonics was Wegener's theory that Earth's continents rest on sections of Earth's crust that drift together and apart over time; continental drift is a hypothesis describing how plate tectonics might happen.
Explanation: Tectonic plate movement is a long-term environmental change.
Answer:
When a molecule is excited to a higher state it often ends up in its lowest excited state S1 and then emits radiation.
Answer:
Your answer is C - Heterogeneous mixture
Solid, malleable, and can be crushed
