The answer is that you have to use this formula that is u=Gm/R+h
It because they give us oxygen and without oxygen we would all die from oxygen deprivation.
the process that gives us oxygen is photosynthesis
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Understanding density helps you predict whether an object will sink or float.
C
To prevent blood flowing back after each heartbeat. They ensure that the blood flows only in one direction (back to the heart).
Answer:
They became careless and transferred to every body saying i cant all of us has to die
