Which process is the major source of oxygen released into the atmosphere?
a. cellular respiration
b. photosynthesis
c. automobile exhaust
d. the weathering of rocks

Idont think i'm understand this some one me! before we begin our discussion on evolutionary theory, reflect on your personal philosophical or religious views with regards to evolutionary theory. what is the difference between science and religion?

What did the first language sound like

Ineed a chemical reaction takes place in which erlergy is released. arrange the reaction's characteristics in order from start to finis lower energy of reactants higher energy of products higher energy of reactants transition state sd lower energy of products