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Many sidewalks have areas that are uneven or even completely broken. This is usually caused by A. tree roots wedging underneath B. lichen living on the surface. C. oxidation of …

Many sidewalks have areas that are uneven or even completely broken. This is usually caused by A. tree roots wedging underneath B. lichen living on the surface. C. oxidation of …
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Many sidewalks have areas that are uneven or even completely broken. This is usually caused by

A. tree roots wedging underneath
B. lichen living on the surface.
C. oxidation of the cement due to oxygen.
D. contact with other rocks.

asked
User Carles Andres
by
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2 Answers

4 votes
C.) oxidation of the cement due to oxygen
answered
User Swalkner
by
7.9k points
1 vote

Answer:

C

Step-by-step explanation:

answered
User Number Logic
by
8.7k points
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