Answer: A. plants
Explanation: plants begin the food chain because it is a producer, which doesn't eat other animals to get energy.
Answer:
you inhale oxygen and exhale carbon dioxide.
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A. a gorilla that uses sign language to express itself
The right answer is Filtration.
A water filter is composed of a filtration system that aims to separate the water from the solid particles (residues) by passing it through a porous medium, which allows only the liquids and the finer solid particles to pass through. as the filter holes (porosity). The water that comes out of this filtration system is rid of solid particles larger than the pores of the filter.
Some water filters are designed to make drinking water (very fine filtration, less than the size of a microbe).
B migration, that is the answer
