Reactions between atoms occur when: an atom seeks to fill its outer shell of electrons an atom seeks to balance its positive and negative charges the reaction will result in paired electrons

because the light is a great source of energy for the plants to survive. (i hope this )

atp is used for energy.

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully

answerclassical conditioning;