pg. 266-267 #1-25

1) carbon film

2) principle of superposition

3) uniformitarianism

4) unconformity

5) half-life

6) fossil

7) radiometric dating

8) permineralized remains

9) cast

10) a-fossil

11) c-made of hard parts

12) b-mold

13) d-uniformitarianism

14) d-relative age

15) c-disconformity

16) d-,43,2,5,1

17) d-radioactive decay

18) Everyday new fossils are being discovered and not all of them are found yet therefore earth's fossil record of life is incomplete.

19) To learn about the ages of sedimentary rock you could use radiometric dating which would create half-lifes.

20)

21)

22)

23)

24)

25)

absolute age-

carbon film-

cast-

fossil-

half-life-

index fossil-

mold-

permineralized remains-

principle of superposition-

radioactive decay-

radiometric dating-

relative age-

unconformity-

uniformitarianism-