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Closed systems in
nature are:
A. rare because most systems
need matter plus an in-flow of
constant energy to survive.
B. the most common type of
system found in nature.
C. open to matter, but not
energy.
D. ONLY open to matter.

Closed Systems In Nature Are A Rare Because Most Systems Need Matter Plus An Inflow Of Constant Energy To Survive B The Most Common Type Of System Found In Natu class=