In 2-3 sentences, describe the Hertzsprung-Russell diagram. What is it used for? What factors does it use to classify stars?

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 are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

Which of the following is the most likely outcome of global warming