Atmosphere is a huge blanket of air surrounding the earth.

Biomes are large regions of earth that have certain climates as well as certain Biotic factors.

Crust is the outer layer consisting of rock. The earth's crust is the layer that we walk on.

Diversity is the variety of life on Earth. Number of different plants, animals, and microorganisms.

Ecosystems are a place where organisms interact with one another.

Food Chains show how each living thing gets food, and how nutrients and energy are passed from creature to creature.

Gmo's are any organism whose genetic material has been altered using genetic engineering techniques.

Hydroeletric energy is produced with the help of turbines and fast flowing water.

igneous rocks are formed when magma cools.

Joules are the standard unit of work or energy

K-selected species possess stable populations with low numbers in offspring.

Land use involves the management and modification of natural environments into settlements.

Mining is the process of obtaining coal or other minerals from within a mine.

Nuclear is a type of energy that involves changes in the nuclei of atoms, like nuclear fission or fusion.

Ozone layer is a layer within earth's stratosphere containing a large amount of ozone. The ozone layer absorbs UV-rays.

Pollution is the presence of a substance in the environment that has harmful or poisonous effects.