............: gaseous envelope that surrounds the Earth & constitutes the transition between its gases & the vacuum of space.

The atmosphere consists of four unique layers (the ........., the stratosphere, the .........., and the thermosphere).

.............: the life zone of the Earth and includes all living organisms, and all organic matter that has not yet decomposed.

The ......... is the “life zone” of the Earth, and includes all living organisms (including humans), and all organic matter that has not yet decomposed.

Hurricanes (atmosphere) sweep across the ocean (...........) and onto the land (............), damaging the dwellings of people (biosphere) who live along the coast.

...........: comprises the solid Earth and includes both Earth’s surface and the various layers of the Earth's interior.

Atmosphere: Life processes involve a many chemical reactions which either extract or emit gases to and from the atmosphere (e.g. photosynthesis consumes........ and releases ............., whereas respiration does the opposite).

..........: includes all water on Earth (including surface water and groundwater)