The principal that states that younger rocks lie above other rocks in the superposition principal.
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Answer:
1. Compaction occurs where pressure is placed on loosely packed sediment. The volume of the sediment is reduced and water is squeezed out.
2. Cementation occurs when mineral-bearing water circulates among the grains, hardens, and cements the sediment grains together. This process is most effective when lithifying sand and gravel-sized sediments.
Explanation:
The correct answer is B. Sunlight is a limited resource in the lower
depths of the oceans. A is not correct, as there is plenty of water
throughout the entire ocean. C and D are not correct because many plants
and sea creatures live at even at the lowest depths of the ocean, where
they serve as prey and predators of their fellow organisms.
The types of erosion is matched with their effects.
Explanation:
- wind -On a calm, sunny day, a weathered boulder rolls down from a steep cliff and falls into the sea.
- glaciers - Frozen water displaces a rock from its current location.
- gravity -A desert grows larger as sand particles are transported to farther regions.
- waves - Weathered particles from oceanic rocks and reefs are deposited on low-lying land by water.
