Atmosphere

Shields from meteorites.

Water

Came from comets in outer space.

Desertification
Rivers turn into deserts.

Sea Breeze

Reversal in wind direction.

Orographic Effect

Mountains trigger rain.

Freshwater

On mountains.

Frost Weathering

Water cracks rocks.

Wind

Can snap trees.

Acid Rain

Caused mass extinction.

Microburst

Threat to aviation.

Cloud Seeding

Triggers rain.

Dew

Reaches driest regions.

Shorelines

Recede due to global warming.

Fire Whirl

Tornado with fire.

Atmospheric Pressure

Decreases with altitude.

Flash Flood

Sudden surge in water.

Weight Of Clouds

Average is million pounds.