How much ancient plant debris is necesary to form one foot of coal a. one foot of plant debris b. ten feet of plant debris c.50 feet of plant debris d. one hundred feet of plant debris.

be subject to a force andchange its motion

hi there!

out of the two, (b) precision would be more reasonable.   however, both a and b could be pretty reasonable.

-awesomerepublic   : )

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.