HELPDoes anyone have the answers for: Lesson 1 & 2: Final Exam Physical Science Cumulative Exam Connexus If you do please give them to me All 1-100 i will give you brainliest

The horizontal blue line through the middle of the lens is called the optical axis. as the lamp is moved above or below the axis, keeping the horizontal distance to the center of the lens constant, how does the horizontal distance from the lens to the image change?

List and describe three ways that humans can change ecosystems and three ways that humans can protect ecosystems.

In your own words, describe the purpose of using a chemical equation.