Unit 3
What is carrying capacity K for a population in an ecosystem?
Maximum population size that the environment can sustain over time (topic 3.4)
Most tectonic plates are made of which two types of crust?
Oceanic crust and Continental crust. (topic 4.1)
What soil layer is most damaged by overgrazing?
Topsoil
What renewable source uses sunlight to generate electricity?
Solar panel. (6.6)
What are the three GHGs?
CO2, H2O, CH4. (9.3)
When is the population growth rate the highest?
Tip: this question is about carrying capacity.
When the population size is about half of carrying capacity.
(topic 3.4)
Which layer of earth is composed with mostly liquid iron and nickel?
Outer core (4.1)
What irrigation has the highest efficiency?
What fossil fuel releases most CO2 per unit energy?
Coal
What is Unit 9?
Global change.
True or False: Increased competition for food as population rises is an example of a density-dependent limiting factor on population growth.
True
Why are deserts found around 30 degree north and south latitude?
Sinking dry air from Hadley cells creates high-pressure zones that limit precipitation. (4.5)
What gas contributes heavily to climate change?
Methane gas.
Is fossil fuels renewable?
No (6.1)
Does burning fossil fuels release CO2?
Yes it does. (9.5)
Doubling time formula?
Can low soil permeability restrict the movement of water through pore spaces?
Yes
Tru or False: Soil degradation can cause desertification.
True
What tern describes energy saved through efficiency improvements?
Conservation (6.13)
What is the process that caused ocean water to become more acidic as CO2 dissolves into it?
Ocean acidification. (9.7)
Population density formula?
Population / Area
In which plate boundary setting are you most likely to find explosive volcanic eruption that creates volcanic chains on land?
Convergent boundary where an oceanic plate subducts below continental plate.
What term describes land becoming desert from overuse?
Desertification.
What renewable source uses heat from earth's interior?
Geothermal (6.10)
What layer mostly consists of the ozone layer?
Stratosphere (9.1)