9. The iris may dilate to make the pupil bigger or constrict to make the pupil smaller. This allows more or less light into the eye. Which of the following would cause the iris to do
this?
a. Change in pressure
b. Change in light
c. Disease in the eye

Put these processes of the water cycle in the correct order, starting at the point where the water is in the lake: 1. water evaporates into the atmosphere 2. rain, snow, or other precipitation falls 3. water collects into larger bodies of water 4. water vapor condenses into liquid water

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

How have the greenhouse gasses increased from the year 2000 to 2018