Answer: Potassium-argon dating
Explanation:
Answer:
Minerals precipitated from solution as water evaporates and materials formed through biological activity such as making shells or other hard parts
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They form in the ocean where undersea volcanoes are errupting. The magma turning into lava piles up on top of itself over lots of time to form land.
Answer:
c. Graded beds are evidence of a decrease in current velocity during deposition whereby coarse sediments settle out first, followed by finer sediments as the velocity decreases over time.
Explanation: