Blog

The image below shows a mineral with hydrochloric acid applied to it. What mineral is this?

During most of the Mesozoic Era, Earth was ________.

Diagenesis refers to ________.

Currently, the most accurate ages of Earth come from dating ________.

Geological evidence suggests that many millions of years ago, the Amazon basin drained toward the west rather than the east. What caused this drainage reversal?

The volcanoes of the Cascades Mountains in the northwest United States are related to melting of rock associated with a ________.

According to the currently accepted scientific model, which of the following is NOT correct about the formation of the Moon?

Earth’s magnetic reversals are likely due to ________.

An impermeable layer of rock or sediment is termed a(n) ________ in hydrogeologic contexts.

Any place where groundwater naturally flows out of Earth’s surface is termed a(n) ________.