Which type of stars is very a main sequence star becomes a after it uses up the hydrogen in its core. hot but gives off little light?

Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?

What is the difference between how ionic and covalent bonds form

Where can dna be found in a prokaryotic cell