The ultimate source of energy to support most life on earth is see concept 10.1 (page 189)
a) geothermal heat
b) sunlight
c) photosynthetic plants
d) the carbon cycle
e) chemosynthetic microbes

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

What do all of the above organisms have in common

(asap! big points! ) an unknown substance is heated from 10 °c to 25 °c. the table below shows the state of the substance at different temperatures. first row: time (minutes) second row: temperature of liquid (degrees celsius) third row: state of matter 0 10 solid 2 15 solid 4 17 6 17 8 17 10 23 liquid 12 25 liquid which statement is correct about the unknown substance? a. its melting point is 17 °c. b. its melting point is 15 °c. c. the substance sublimes at 15 °c. d. the substance exists as a gas at 17 °c.