You analyze a bone fragment for carbon-14 and determine that 0.7 half-lives have occurred. Carbon-14 has a half-life of 5,730 years. How old is the bone fragment?

Determine which of the following statements is true using the block diagram shown below. B, C, D, and E are sedimentary units A is a dike (an igneous intrusion) F is an unconformity

How long ago did the Big Bang occur?

_______________ is the section of the mantle that behaves like a plastic.

What leads to the formation of magma at an oceanic-oceanic convergent boundary (aka a subduction zone)?

Geology is the study of ___________.

Which of the following factors influences the viscosity of magma? Select all that apply.

Which of the following weather maps would you look for if you wanted to determine how surface air pressures vary across North America?

Mid-ocean ridges form when two sections of oceanic lithosphere converge.

Which of the following Earth processes are considered external processes? Select all that apply