Coal, oil, natural gas and propane are fossil fuels, They are called fossil fuels because:
What is Geothermal Energy?
The United States is rich in natural resources. Name 2 reasons that we choose to import (buying materials from another country) rather than use what we already have?
Example: The US buys oil from the Middle East even though the US has lots of oil that we could use.
As the cost for oil increases the demand will _________.
What is a renewable resource?
Which of the following are considered non-renewable resources? Select all that apply.
When do "renewable" resources become "non-renewable"?
Name 3 alternative energy sources.
What is one reason why gold mining is continuing in the Yukon Territory even though it is hard to find and extract the gold from the ground?
The state in which a fish population can survive indefinitely is called...
Which of the following is NOT a reason that most humans mine?
Name one reason why people are interested in taking the salt out of seawater.
Fisheries renew themselves naturally each year, but _________ has caused a shortage of fish in some areas.
Fresh water can be produced by removing the salt from ocean water using a process called _____________.
The natural resources in a country often determine.....
In the last 100 years the seafood resources of many parts of the oceans have been exploited so intensively that many species are overfished.
Why did Peru move down on the list of countries on the 2016 World Catch of fish, crustaceans, mollusks and other marine species report? (Select all that apply)
If the fish population can survive indefinitely, what type of feedback loop would this represent.
Minerals and nutrients from deep in the ocean are brought to the surface in cold water as a result of ___________.