HELP I NEED IT FAST PLEASE HELP ME :( I really need this one to pass. 1) A diagonal boundary seems to divide at least layer F and layer B into two sectionsPredict the event that formed this boundary , and predict whether the event occurred before or after the formation of the layers around it . Explain your reasoning

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e