Pollutant
A Harmful Substance Released Into The Environment That Disrupts Ecosystems.

Lichen
A Symbiotic Relationship Between A Fungus And A Producer Such As Algae.

Eutrophication
A Process In Which Excess Nutrients Cause Algal Blooms, Reducing Oxygen In Aquatic Ecosystems.

Physics
The Scientific Study Of Matter, Energy, And The Fundamental Forces Of Nature, Including Concepts Such As Motion And Force.

Acid Rain
Rainfall With A Low pH Caused By Air Pollution, Damaging Ecosystems And Tissues.

Classical Mechanics
A Branch Of Physics That Describes The Motion Of Objects Under The Influence Of Forces, Based On Laws Such As Newton First Law.

Greenhouse Effect
The Warming Of Earth Atmosphere Due To Greenhouse Gases Trapping Heat.

Climate Change
Long Term Alterations In Temperature And Weather Patterns Affecting Ecosystems Globally.

Fossil Fuel
A Carbon Rich Energy Source Formed From Ancient Organisms That Releases CO? When Burned.

Renewable Resource
A Resource Such As Solar Or Wind Energy That Can Be Replenished Naturally.