Which of the following is considered evidence of a chemical change?

When it has lost a main function of the previous object. When a piece of paper is burned, it is no longer paper. Paper can be wrote on, but ash cannot.

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).