all the water on our planet : rivers, oceans, lakes
hydrosphere
mass of gases surrounding our planet including oxygen
Atmosphere
solid part of the earth, rocks and minerals
geosphere
all living things on earth, including animals, plants and humans
Biosphere
the mantel, core and crust belong to:
geosphere
outer and thinnest layer composed of solid rocks
crust
thickest layer of hot, semi solid rock
mantle
composed of iron and nickel and is the inner core
Core
