Hydrosphere
Natural Resources
Water Quality
Earth History
Rock Layers
Rock Layers
Earth History
Fossils
Fossils
100
This term describes the amount of dissolved salt in ocean water.
Salinity
100
This term describes a resource that can be replaced as fast as it is used.
Renewable
100
This word describes how "cloudy" or "murky" water is due to suspended sediment.
Turbidity
100
Which fossil is the oldest?
The shell
100
If a scientist finds a fish fossil on a mountaintop, it is evidence that the land was once "this."
Underwater
200
This "belt" moves heat around the globe through deep and surface currents.
Global Conveyor Belt
200
This is the main greenhouse gas released by burning fossil fuels.
Carbon Dioxide
200
This term describes water that is safe enough for humans to drink.
Potable
200
Which fossil is the oldest?
Trilobite
200
This supercontinent existed 250 million years ago and is proven by matching fossils on different continents.
Pangea
300
This is the name for the coastal area where freshwater from a river meets saltwater from the ocean.
Estuary
300
This natural resource is renewable but is hard to find because you must live near tectonic plate action to harness it.
Geothermal
300
High levels of these two nutrients, often from fertilizer runoff, can cause algal blooms.
Nitrates and Phosphates
300
How old is the Earth?
4.6 Billion Years Old
300
How old is a fossil found in a layer of rock between two index fossils dated at 100 million and 200 million years.
Between 100 and 200 million years old.
400
This process brings cold, nutrient-rich water from the deep ocean to the surface, supporting large fish populations.
Upwelling
400
This is the responsible management and protection of Earth's natural resources.
Stewardship
400
This federal act passed in 1972 regulates the discharge of pollutants into U.S. waters.
Clean Water Act
400
Suppose the blue star represents a certain fish species. When did this species go extinct at this location?
at the end of the Triassic period
400
What are the three main traits that make an index fossil unique?
1. Widespread
2. Makes a good fossil
3. Lived during a short period of time
500
When water turns into water vapor through plants.
Transpiration
500
This renewable resource can deplete our food source if overused and is not a clean energy source.
Biomass
500
Pollution that comes from a single, identifiable source, like a factory pipe, is called this.
Point Source Pollution
500
Put in order from Oldest to Youngest?
B, G, C, D, E, H, A, F
500
A geologist in the North Carolina mountains finds a thick layer of coal, a nonrenewable resource created from ancient remains of tropical plants, sandwiched between two layers of marine limestone containing trilobite fossils. Based on the coal and fossils, describe how the environment has changed over time.
The area changed from ocean to tropical land back to ocean.