What is the term for a mirror with a flat surface?

a. silver mirror

b. plane mirror

c. glass mirror

d. reflecting mirror

I think flat surface mirrors are also just called plane mirrors. One way to tell even if you don't know that this is the answer is by knowing that flat mirrors have "planar reflective surfaces"

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d