Which option describes where the energy Input required for photosynthesis comes from? 1. carbon dioxide

2. water

3. sunlight

4. sugar (glucose)​

Plants make sugars in the presence of sunlight in a process called photosynthesis

Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.

Explanation:

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.