Ecology and Environment
Winter survival · Offers and conditionals · Paragraphs and letters
Name the components of the environment
Explain four ways animals survive winter
Make, accept and refuse offers politely
Use if and unless, and write a letter to the editor
Atmosphere: the air around the Earth
Hydrosphere: all the water on Earth
Lithosphere: the solid, rocky land
Biosphere: the zone where life exists
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