Module 1: Lesson 2. Characteristics of Earth that Sustain Life

Earth

"Planet of Life"

Thickness of atmosphere

100 miles

Biotic Factors

All the living organisms that inhabit an environment

Right Atmospheric Conditions

Capable of trapping heat and housing important gases.

Biogeochemical Cycle

Cycle by which chemicals circulate through an ecosystem using biotic and abiotic components.

Right Distance from the Sun

Earth is in Goldilocks Zone.

Greenhouse Gases

Gases in Earth's atmosphere that trap heat near the surface.

Goldilocks Zone

Habitable zone. A region with just right T not too cold and not too hot.

Geological Processes

Include volcanic eruptions, the formation and breakdown of rock, and major movements of matter within and below the surface of the earth.

Temperature of the Earth

Influence how quickly atoms and molecules move

Lithospheric Plates

Protects surface from the heat of the core.

Strong Magnetic Field

Shields us from electromagnetic radiation of the Sun. Deflects radiation that may destroy ozone layer.

Water

This matter dissolves and transports materials in and out of cell.