Question: Q: The bending of a wave around the edges of an opening or an obstacle is called this? Choices: - reflection - sputtering - absorption - diffraction A:
Answer: diffraction

Question: Q: Which part of the earth is made of the rigid, brittle, solid crust and uppermost mantle? Choices: - troposphere - thermosphere - atmosphere - lithosphere A:
Answer: lithosphere

Question: Q: What is regulated by the reticular formation? Choices: - awkwardness - sleepiness - anxiousness - wakefulness A:
Answer:
wakefulness