All Questions

A persistent mass of ice formed on land from accumulated and compacted snow that moves under its own weight

A body of permeable rock or sediment that stores and transmits groundwater

A fracture or zone of fractures in Earth's crust along which displacement has occurred

A rotating, organized system of clouds and thunderstorms that originates over tropical or subtropical waters and has a closed low-level circulation

A series of ocean waves caused by a large and sudden displacement of the ocean

Reducing and reusing

Sulfur dioxide (SO2) and nitrogen oxides (NOx)

Precipitation with unusually high acidity, largely caused by atmospheric sulfur dioxide and nitrogen oxides

Ultraviolet radiation

Infrared radiation

The change in direction of light as it passes from one medium into another because its speed changes

The return of light from a surface into the medium from which it came