Antarctica - Words and Definitions

Matching exercise

Match the words on the right with their definitions.There are TWO words you won't need.
very simple plant that grows in or near water
to move slowly to or from a place
very soft green plant that grows on wet ground
rainfall or snowfall
nature and the world around us
a long and carefully organized journey, sometimes to a dangerous place
thick layer of ice
written agreement between people or countries
large animal that eats fish and lives near the sea
forbid, not allow