What is Earth Science? Section 1.2

Earth consists of four major spheres which are

• hydrosphere, mesosphere, geosphere, and biosphere

• hydrosphere, atmosphere, geosphere, and biosphere

• hyposphere, atmosphere, geosphere, and biosphere

• hydrosphere, atmosphere, geosphere, and biology

Which sphere contains all life-forms on Earth

• hydrosphere

• atmosphere

• geosphere

• biosphere

Which sphere contains the gaseous envelope around Earth

• hydrosphere

• atmosphere

• geosphere

• biosphere

Which sphere contains the core, mantle, and crust

• hydrosphere

• atmosphere

• geosphere

• biosphere

Which sphere contains the water portion of Earth

• hydrosphere

• atmosphere

• geosphere

• biosphere

Which sphere contains the water portion of Earth

• hydrosphere

• atmosphere

• geosphere

• biosphere

Which layer of Earth contains the dense, heavy inner sphere of Earth

• core

• mantle

• crust

Which layer of Earth is located between the crust and core.

• core

• mantle

• crust

Which layer of Earth is the thin outside layer of Earth’s surface.

• core

• mantle

• crust

The theory that provided geologists with a model to explain how earthquakes and volcanic eruptions occur and how continents move.

• Continental drift

• evolution

• plate tectonics

• Pangaea