human impacts
Too many fish are removed before they can repopulate.
What is overfishing?
The scientist who discovered plate tectonics.
Who is Alfred Wegener?
The state of the atmosphere at that time.
What is weather?
Coats with dust and ash and blocks solar radiation.
What is a volcanic eruptions?
Takes in carbon dioxide, releases oxygen.
What is a tree?
The clearing of trees from a forest.
What is deforestation?
The crust of the earth is divided into plates.
What is the plate tectonic theory?
The conditions of the atmosphere over a long period of time.
What is climate?
Decreases temperature and blocks light.
What is a meteor impact?
A gas that takes up about 79% of greenhouse gases.
What is CO2?
The increase of population in cities.
What is urbanization?
When two plates come together.
What is a convergent boundary?
Lines connecting points of equal air pressure.
What is a isobar?
Gases that trap heat in the atmosphere.
What are greenhouse gases?
The cycle of which carbon is turned into oxygen.
What is the carbon cycle?
Non-renewable energy sources.
What are fossil fuels?
When two plates divide.
What is a divergent boundary?
Force exerted on earth's surface by the weight of the air above the surface.
What is air pressure.
Changes earths climate by adding warmer water to oceans.
What are ocean currents?
The chemical element that helps us breathe; found in the air.
What is oxygen?
The release of harmful resources into the climate.
What is pollution?
When two plates slide past each other.
What is a transform boundary?
A huge body of air in the lower atmosphere that has similar conditions at any given height front.
What is air mass?
Periodic changes in solar radiation.
What is solar activity?
The process in which plants use light energy to produce food.
What is photosynthesis?