All of the elements in the periodic table have just recently been discovered. a. true b. false

1) this is the structure in the cell nucleus that houses a cell's genetic information

How much energy is made when a pice of wood burns. how do you know

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space