Glossary

Biological: used to describe the processes which occur within a living organism's body

Deforestation: The act of destroying forests for industrial purposes or to build things.

Global Warming: the rise of temperature on Earth caused by green house gases. e.g.carbon dioxide

Food Chain: a series of living things linked together because of their eating relationship. e.g. grass--> grasshopper-->frog-->snake

Habitat: the place where animal and plants live

Extinction: If a species is extinct, it means that there are no more of that species alive in the entire world. Their population has dropped to 0, therefore cannot reproduce and does not exist in the world anymore.

Aerosol:

Permafrost: Soil which is at or below freezing point for water.