Answer the following question - Why are food insecurity, a lack of clean water, and the need for renewable energy sources problems
worth solving?

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.

what are the options? add them, then i will be glad to .

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.