Exam 11: Earth the Active Planet

In comparing the Terrestrial planets, which planet is most similar in size to Earth?

The region controlled by Earth's magnetic field is the _______________.

What is the correct order of planetary development?

It is believed that there was a heavy bombardment of planetesimals at what stage in planetary development?

Terrestrial worlds are all differentiated, which means they are separated into layers of different _______________.

Heat rising from Earth's interior drives erosion.

List some of the geological forces and end products of plate tectonics.

What is the current debate about the origin of water on Earth?

The first stage in planetary evolution is cratering.

When a volcano erupts, over 90% of the gas released is water vapor.

Earth's core is hot, dense, and mostly composed of iron and nickel.

When an earthquake occurs, no direct _______________ pass through the core to register on seismographs on the opposite side of Earth.

The collision of plates can produce ____.

Earth's upper atmosphere is protected from infrared radiation by an ozone layer.

There is oxygen in Earth's atmosphere because of plant life.

Where are volcanoes most common?

A plate sliding into a subduction zone can trigger ____.

Which stage of planetary development has all but eliminated much of Earth's surface history?

What does molten rock solidify into?

Human output of CO₂ is minor in comparison to the CO₂ output of volcanoes.