Answer:
C AND E?
Explanation:
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The main reason for the species extinction is for the ecological changes.
When sound waves hit a solid surface they either reflect, refract, or absorb.
Echo's are caused by the reflection of sound waves.
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Following spdf notation, the electron configuration for Nobelium (No) is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d0 7s2
Answer:
Explanation:
1,12,2,18,3,15,4,21,5,11,6,13
