What do you do immediately if a piece of equipment is not working properly in the laboratory?

First what i do is stop the machine and call someone.

Explanation:

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