Which statement best explains why so many fossils look different from the millions of species currently living on Earth? A. The rock that makes up the fossils has broken down over time
B. Most species that have lived on Earth are now extinct
C. The fossil record is filled with inaccuracies
D. Organisms are becoming simpler over time through evolution

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?