Nearly all of the energy that earth receives from the sun is used in photosynthesis.

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes

Does anyone know what the schooling version of sos mean? example