This is true. Hope this helped:)
<span>Crust: The thin, outer layer of the earth. Less than 1% of the Earth's mass.Made of solid rock, broken into plates.
Mantle: Molten rock on which plates float. Contains 67% of the earth's mass.
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Core: Inner layer of the Earth. Made of both solid and liquid metals.</span></span>
Answer:
Option d
Plate tectonics i think but im not sure
Most mutualisms involve partnerships between ectothermic organisms. Therefore, they are particularly sensitive to changes in temperature, and most will be strongly affected by climate change. A mutualism will retain stability and function only under a particular set of environmental conditions.
The most effective way to prevent beach erosion is to replant mangrove trees, seaweeds and seagrass. The strategic planting of vegetation can be used to help control erosion. The roots of these plants help to anchor the sand and ensure that it is not carried off in erosion. This is why many areas plant seagrass and build marshes along coasts to prevent erosion.