Methane (CH4) combines with ice then gas (o2) to form carbon dioxide (CO2) and water (H2O). Describe the number and type of atoms for a molecule of each substance

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d