Movement of substances across a plasma membrane that does not require energy. A. active transport
B. passive transport
C. diffusion
D. osmosis

b)Passive transport because the  movement of substances across the membrane without the expenditure of cellular energy.

while active transport is :

active transport is the movement of substances across the membrane using energy from adenosine triphosphate (ATP).

c should be the answer

1)

i))the process of preparing food by green plants in the presence of sunlight is called photosynthesis.

ii) leaf is the site for photosynthesis.

iii) it takes place as,

6h2o+6co2=c6h12o6+602