The majority of earthquakes and volcanoes occur:

Along plate boundaries

In the middle of the ocean

In the rift valleys

In the middle of continents

science-ocean floors and habitats study guide by volleyballqueen3817 a major advance in ocean-floor mapping. list four sections of the ocean floor. algae that use sunlight to produce their own food through photosynthesis. all of the feeding relationships that exist in a habitat. drying out, predators, find food.

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the answer is d. embryo