U4 Geography Environment pg. 74-78 Big Ideas
The __________ is everything that is on, in, or surrounding
the __________.
Everyone takes in __________ and puts out __________
__________ into the air.
The environment is made up of 4 parts: the __________ (air),
the __________ (water), the __________ (Earth’s crust), and the __________ (all
living things).
The atmosphere allows us to __________; it shields us from
the direct rays of the __________; it supplies __________ to the land; it
provides __________ the nitrogen/carbon dioxide needed to grow.
The hydrosphere takes up almost __________ of the Earth’s
surface; it includes the __________, __________, __________, and the frozen
polar ice caps; our oceans supply most of the __________ that falls on land.
The lithosphere is the Earth’s crust or __________ and is up
to 50 __________ thick made up of __________ and soils that allow us to grow
crops and provides us with natural resources like __________, __________ and
__________.
The biosphere is the part of Earth where __________,
__________ and people live.
Air is made up of __________, oxygen and __________
__________.
The ozone layer high up in the stratosphere of our
atmosphere blocks out much of the harmful __________ (UV) light from the
__________ which can cause skin cancer.
Our ozone protection weakens when we use __________, __________ or
refrigerators because chemicals like
chlorine, fluorine and hydrocarbons are released into the atmosphere.
When we burn fossil fuels like __________ and __________ we release carbon dioxide into the atmosphere; this causes higher temperatures and changes to Earth systems – this called the __________ __________.
