Why do scientists think Earth's core contains iron?

A. Iron cannot generate a magnetic field.

B. The moon has a similar core.

C. The crust is made mostly of nickel.

D. Samples of Earth's crust contain less iron than meteorites.

The CMB includes information about Choose one or more: A. the age of the universe. B. the density of the early universe. C. the motion of Earth around the center of the Milky Way. D. density fluctuations in the early universe. E.

Which statements describe Wegener's ideas that became known as the theory of continental drift? A) The continents move. B) The continents drifted apart over a long period. C) The continents were once connected as one landmass.

Describe three stages in the life cycle of a volcano

Landforms formed by forces pushing up Earth's crust

The short residence time of water in the atmosphere allows a water molecule to have a stronger ability to do which of the following, compared to a situation if the residence time in the atmosphere were larger? A.

Economics is about to which of the following with resources when it comes to production and distribution of goods and services

What does population geography study?

Describe how an issue moves from the public sphere to becoming public policy

Slove by taking the square root of both side

What do isotherms show?