Which of the following is an example of a chemical change within Earth’s systems? Select one:

Erosion.

Sedimentation.

Weathering.

Photosynthesis.

Part 3. (4 points) model interpretation. a. (2 points) number of rooms should be a part of your final model. interpret the coefficient of number of rooms while keeping the other variables constant. b. (2 points) calculate the 95% confidence interval for show work. interpret the interval.