What is called when plant grow toward a source of water?

Asap! how does the distance between two objects affect the force of gravity? how is the moon dependent on the sun?

Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform photosynthesis. magnesium is an important component of chlorophyll. the concentration of magnesium ions is higher in the root-hair cells of plants than in the soil. which mechanism of ion uptake would best enable a plant to produce a steady supply of chlorophyll? osmosis diffusion passive transport active transport

What types of energy transfers and energy transportations are involved in the domino chain reaction?