Ineed this answered asap
what statement best describe the fossil record?

1. it is a complete record

2. it is an incomplete record

3. most fossils are older than five billion years old

4.all fossils are younger than six hundred years old

Consider the following planned experiment. factor experimental group control group light exposure tots of sun tots of sun amount of water weekly weekly type of soil nutrient rich nutrient rich size of pot large which variable is being tested in this experiment? small a. size of pot b. type of soil c. light exposure d. amount of water