25
which of the following is a correct statement describing photosynthesis?
plants make glucose and oxygen by taking in carbon dioxide and water.
plants take in oxygen and carbon dioxide to make glucose and water.
plants take in oxygen and water to make carbon dioxide and glucose.
plants take in glucose and carbon dioxide to make water and oxygen.
26
under what condition will a marshmallow and a rock fall at the same speed?
in the water
the marshmallow must be thrown down with greater force
this can never happen, because of the different masses
in a vacuum
27
which of the following would exert about 1000 newtons of force?
a baby
a large man
a safety pin
a dump truck