The diagram below shows how heat transler occurs near Earth's surface. What do the arrows represent? 00 O Heat transfer by electromagnetic waves. O The cycles of water vapor in the atmosphere. O The upward movement of warm air and the downward movement of cold air

answer: you could do some invislibe ink.

explanation: i will tell you how to if u answer my question.

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