HELPP . When we look at different environments on Earth we find areas that have to do with the ocean, or areas, By contrast, area areas deal with dry land and are higher toward the coastline. Both of these areas are part of the area, which is the portion of the coastline that goes through periods of coverage and exposure due to the changing ocean level. This pattern of water rising and falling is called the area. It is caused by the area of the moon and rotation of earth

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