C. Select a field of study within environmental science. Describe how a professional in that field would contribute to the environmental study of a lake. (0.5 point)
Think about the specific expertise that a professional in your field of choice would have.

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explanation:

b r

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when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

c: warm water flows from the western tropical pacific toward south america. that should be the right answer! hope it .

a) carbon, hydrogen

b) carbon, hydrogen, oxygen, nitrogen

c) carbon, hydrogen, oxygen, nitrogen, phosphorus

d) sugar

e) amino acid

f) nucleotide