I will award 100 points!! If anyone can summarize the paragraph below in the picture :))

Summarized

chemical and physical properties of  the reactants are changed. iron (fe) shiny , silver solid that mostly reacts with oxygen (o2)  a colorless, odorless gas to form an iron oxide a brown orange solid. chemical change involved in the rusting of iron is clearly color change.common observations that occur during a chemical reaction include the formation of gas,the information of solid,the dissapperance of solid, absorption or release of heat. not all chemical actions are easily observed. ex. reaction between aqueous solution of naOH and aqueous HCI results of the information of an aqueous solution of NaCI. all solution are colorless liquids, so it is not obvious that chemical reaction is taking place, and the use of analytical instruments . the ability to predict when a reaction should occur becomes important in these instances

( tad keep your promise or I else I will report you)

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

i'm pretty sure it is letter c.) car