8. System Interactions
Volcanoes erupt, sending ash and
gases into the air and sending
lava and ash down onto
surrounding forests and human
habitations.
Geosphere
Atmosphere Biosphere
9. System Interactions
Hurricanes sweep across the
ocean and onto the land,
damaging the dwellings of people
who live along the coast.
Atmosphere
Hydrosphere
Geosphere
Biosphere
10. System Interactions
Earthquakes can damage buildings which
may kill people, as well as cause fires which
release gases into the air. Earthquakes in
the ocean may cause a tsunami which can
eventually hit land and kill both animals
and people.
Geosphere
Biosphere
Atmosphere
Hydrosphere
11. • Humans can alter the albedo of an area,
which affects the Earth’s energy budget
• We can burn fossil fuels which puts
CO2 in the air, or plant trees, which
takes CO2 out of the air
• Damming a river lengthens the amount
of time it takes water to go through the
water cycle
