Which of the following was not among the early scientific ...

[Beheh]

Which of the following was not among the early scientific attempts to determine Earth's age?
  a. the cooling rate of a molten iron sphere of Earth's diameter
  b. the rate of sediment deposition
  c. the rate at which water precipitation accumulated in the ocean
  d. the geologic principles and the inferred rates of change necessary to explain the fossil
  record
  e. the rate of salt accumulation in the ocean

Question 2

The length of time preserved in Grand Canyon rocks is about:a.
   10,000 years.
  b. 100,000 years.
  c. 1 million years.
  d. 1 billion years.
  e. 10 billion years

[vish98]

Answer to Question 1

C

Answer to Question 2

D

[Beheh]

Thanks for the timely response, appreciate it

[Dinolord]

Gracias!