Answer: A. Crust
Explanation: What is the outer layer of the Earth? The outer layer of the Earth is the crust, a hard thin layer that is composed of continental and oceanic crust.
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Answer:
A: Crest
B: Amplitude
C: Wavelength
D: Trough
E: Sea level
Answer:d - increasing the amount of waste you produce will increase your ecological footprint
Explanation: