Answer:
E. By the release of magma
Explanation:
When the magma leaves the underwater vents, it hardens and spreads making the seafloor bigger.
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This seems to be a square, so QTS is 90 degrees.
Another approach is by solving
3x = 5x-30
2x=30
x=15
Then both of those angles are 45 and sum is 90
Answer:
The answer is the Richer Scale.
Explanation:
