What Catastophic event is caused by movement of the tectonic plates in the Earth's surface?
Earthquake
100
What is the process of moving sand and rock from one place to another called?
Erosion
100
Which ecoregion includes coastal wetlands, marshes, swamps and beaches?
Gulf coast
100
What element makes up most of the atmosphere on Earth?
Nitrogen
200
What do you call the top of the saturated zone (the layer of rock and soil that is completely filled with water) underground?
The Water table
200
What type of catastrophic event can last for many days or weeks after the event has started?
Flooding
200
What are the two types of weathering called?
Chemical and Mechanical weathering
200
In which ecoregion, other than the Gulf Coast, would you find sand dunes that result from wind erosion and deposition?
Trans-Pecos
200
What is the name of the force that keeps the moon in orbit around the Earth.
Gravity
300
Which type of pollution comes from more than one source such as general runoff after a rainstorm?
Non-Point source pollution
300
Most of the Earth's volcanos are found in a large circle around the Pacific Ocean. What is this area called?
The Ring of Fire
300
Name two types of Mechanical weathering
Ice Wedging
Pressure
Animals
Abrasion
Plants
300
What types of Texas ecoregions are most affected by lack of natural wildfires?
Prairies
300
Name three of the four things that all living things must have in order to survive.
Air
Water
Energy
Habitat
400
What is it called when soil has lots of little holes that can hold large amounts of water:
Porosity or Permeability
Porosity
400
Which catastrophic events can result in Primary succession?
Volcanic eruption
400
What is the name of the landform that occurs when a River meander is cut off by movement of the river and forms a crescent shape lake?
Oxbow lake
400
Which Ecoregion in Texas has been developed the most by people leaving very little of the original ecosystem in place?
Blackland Prairie
400
Scientists believe that some of earth's water was formed on the planet through steam but some of the water was carried here by this type of space object:
Meteors
500
What is the biggest source of pollution in our rivers and groundwater?
Agricultural chemicals
500
Name three types of catastrophic events that are caused by weather.
Hurricane, Tornado, Flood
500
How does vegetation prevent erosion?
Absorbs water and roots help soil stay in place.
500
What ecoregion is most affected by chemical weathering due to the amount of limestone in the area?
Edward's Plateau
500
Because the earth is constantly turning on it's axis, all parts of the planet receive sunlight every day. What is this turning process called?