These started to increase as the volcano became closer to erupting
Wind carrying seeds to new places for plants to grow is an example of these two spheres interacting
Atmosphere and Biosphere
Rivers, lakes, and oceans are part of this sphere
Hydrosphere
This is the Greek word for life
Bio-
The date Mount St. Helen erupted
May 18, 1980
Remains of dead plants and animals get buried under soil to form coal and oil over long periods of time
Biosphere and Geosphere
Plants and animals are a part of this sphere
Biosphere
This is the Greek word for ground
Geo-
This number of people died as a result of the eruption of Mount St. Helen
57 people
Humans breathe in oxygen is an example of these two sphere interacting
Biosphere and Atmosphere
Soil, rocks, and minerals make up this sphere
Geosphere
This is the Greek word for water
Hydro-
This caused the bulge on the north side of the volcano
Magma
Rivers eroding away at rocks over time
Hydrosphere and Geosphere
Gases that surround our planet make up this sphere
Atmosphere
This is the Greek word for air
Atmo-
The yellow rocks found near the volcano after the eruption were caused by this
Hot Water
Air temperature impacts the evaporation of lakes and streams
Atmosphere and Hydrosphere
Glaciers are considered part of what sphere
Cryosphere
This is the Greek word for icy, cold
Cryo-