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Invasive species
Invasive Species
There are invasive species in many of the deserts around the world. Many times they do not have any natural enemies in their new environment and will eventually crowd out native species.
Nitrogen monoxide is a radical species (it has an unpaired electron). Radicals are known to destroy ozone in a chain reaction.
The correct name for a shooting star is a Meteorite. Before a meteorite enters the Earths atmosphere it is called a Meteoroid.
immigrant is a person who enters a country or enters a new place (new environment) emigrant is when someone leaves a country or enters a new place (new environment)
The smallest branch of an artery (before it enters capillary bed) is an arteriole.
They contain ammonia in it. It enters to the environment while cleaning.
nothing
Cinna is beaten before Katniss enters the Quarter Quell.
sedimentary rock
thermal pollution