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Please help this is very important i will give you brain thing if its correct no links please

Please help this is very important i will give you brain thing if its correct no links-example-1

1 Answer

4 votes

Answer:

trough

Step-by-step explanation:

Wavelength is the distance between one crest and another.

Crest are the peaks, not the lowest parts.

User Dhruv Gohil
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