As a river transitions to less steep land, it gets wider and slower and... - receives more rain and pollution, and fewer photosynthetic organisms
- contains less dissolved oxygen and more photosynthetic organisms
- gets cooler, more sunlight, and more photosynthetic organisms
- contains more oxygen, more nutrients, and fewer algae blooms

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.

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

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