Answer:
Examples of ecosystem services include products such as food and water, regulation of floods, soil erosion and disease outbreaks, and non-material benefits such as recreational and spiritual benefits in natural areas.
It is only one nuclei in a cell
<span>How does a hypothesis help scientists understand the natural world?</span>
By performing controlled experiment that are tested by gathering more data based on observations
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It is one of the four layers that surround earth the other three are rock, water, air.