Why is coal not classified as a mineral?
a. it is made of organic material
b. it has no crystal shape
c. it is not a solid
d. it does not occur naturally p. s theres not a science option so i just put chemistry

A mineral is a naturally occurring chemical compound, usually of crystalline form and abiogenic in origin. A mineral has one specific chemical composition. Coal is not a mineral because it is organic while a mineral is inorganic that have repeating crystalline structure.

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )

b. is the answer hoped i