6.2 Unit Test
How do hydroelectric dams make electricity?
a) Electrical conductivity of the water moving through the dam creates electricity
b) The water behind the dam has potential energy that gets converted into kinetic energy and moves through the dam. the dam then turns it into mechanical to electrical energy
c) Kinetic energy is converted to potential energy, which turns a turbine to create electrical energy
d) Water is boiled to create steam, which turns a turbine to create electrical energy
b) The water behind the dam has potential energy that gets converted into kinetic energy and moves through the dam. the dam then turns it into mechanical to electrical energy
Which areas of the u.s. have the most potential for geothermal energy?
a) Northeastern US
b) Western US
c) South-Central US
d) Southeastern US
b) Western US
Compared to developed nations, population in less developed nations is...
growing faster
What are the disadvantages of wind farms?
a) turbines produce lots of noise
b) wind farms impact local wildlife
c) often in remote places
d) all of the above
d) all of the above
What is NOT one way carbon moves throughout the atmosphere?
a) through changing weather cycles
b) burning fossil fuels
c) volcanoes
d) weathering / fires
a) through changing weather cycles
the "s" shaped curve often observed in population studies results from...
a) Exponential growth early followed by resource limitations
b) Linear growth early, followed by exponential growth
c) Exponential growth early followed by linear growth
d) Three different linear growth segments, slow then fast then slow
c) Exponential growth early followed by resource limitations
climate change results in a rise in temperature across the globe, with warming distributed evenly everywhere
T or F
False
How do geothermal power plants actually make electricity?
Boiling water turns a turbine, electricity is generated in the generator
where does Texas rank worldwide with wind energy?
a) 1st
b) 6th
c) 7th
d) 3rd
6th
Technologies can capture more than 90% of oxygen emission from power plants. That oxygen is then stored underground for future use.
T or F
False:
Technologies can capture more than 90% of carbon emission from power plants. That oxygen is then stored underground for future use.
if the growth rate is 3.5% the population will double in....
a) 50 years
b) 3.5 years
c) 20 years
d) 33 years
20 years
On Easter island, when the population was one doubling away from reaching the carrying capacity of the island
a) they are running out of some things, but other resources were still available
b) cannibalism had begun
c) society was stable and resources were abundant
d) resources were scarce, and the people were fighting
c) society was stable and resources where abundant
In 2007, the population of Austin TX was about 750,000, and growing at a rate of 2.9%. In what year is Austin expected to reach 1.5 million?
2031
The wind corridor in the US is located from Texas to the Canadian border.
T or F
True
How does carbon capture and storage work?
a) oxygen is captured and put into the ground to store it
b) Carbon is captured and stored above ground
c) Oxygen is captured and stored above ground
d) carbon is captured and put into the ground to store it
d) carbon is captured and put into the ground to store it
a "j" shaped population growth curve is indicative of...
a) exponential growth
b) logimetric growth
c) linear growth
d) constant growth
a) exponential growth
How soon will you double your money if the annual rate was 8.3%?
a) 9.2 years
b) 7.3 years
c) 8.7 years
d) 4.5 years
c) 8.7 years
Which areas of the U.S. have the most potential for geothermal energy?
Western U.S.
What are the advantages of wind farms?
a) it is expensive
b) it only works in certain settings
c) it is inexpensive
d) it is not renewable
c) it is inexpensive
Which of the following is renewable resource?
a) wind turbines
b) solar panels
c) bioenergy
d) all of the above
d) all of the above
Which of these factors are not affected by humans?
a) Landscape erosion rates
b) Atmospheric carbon dioxide concentrations
c) Global temp
d) Sea levels
e) Milankovitch cycles
e) Milankovitch cycles
Compared to developed nations, population in less developed nations is...
a) growing slower
b) growing at the same pace
c) growing faster
d) not growing
c) growing faster
You invest your savings in a mutual fund that is yielding 8.3% annually. How soon will you double your money? Enter your answer in years to the nearest 10th.
8.4
There are no disadvantages to wind farms.
T or F
False
Adapting to climate change means making things and people more resilient and coping with changes in the atmosphere.
T or F
True