Question

the tough black substance used in the manufacturer of stell is dash​

Answer 1

Explanation:

Coke. It is a tough, porous and black substance. It is almost pure form of carbon. Coke is used in the manufacture of steel and in the extraction of many metals.

Answer 2

Answer:

FOSSIL FUELS...

FOSSEL FUELS ARE PRODUCED BY THE DECAY OF ORGANIC MATERIAL OVER MILLIONS YEARS. TO MAKE ONE GALLON OF GAS, IT TAKES ABOUT 98 TONS IF ORGANIC MATERIAL,ROUGHLY THE AMOUNT OF WHEAT THAT COULD BE HARVESTED IN A 40 ACRE FIELD. WRITE AN EXPRESSION FOR THE AMOUNT (IN TONS) OF ORGANIC MATERIAL IT TAKES TO MAKE G GALLONS OF GAS.