Population
The number of years it will take a population to double in size, given its current growth rate
What is doubling time
Sprayed on crops to increase nutrients and crop yield
What are ferilizers
This ground-level pollutant is a major component of photochemical smog.
What is ozone
A boundary where Earth's tectonic plates move toward each other
Low precipitation, extreme temperatures, and sparse vegetation characterize this biome.
What is the dessert
The number of people or living organisms a region can support without environmental degradation.
What is carrying capacity
A combination of methods used to effectively control pest species while minimizing the disruption to the environment
What is integrated pest managment (IPM)
Chemicals in the atmosphere in concentrations high enough to affect climate, health, and materials.
What is air pollution
Sections of the Earth's crust that move due to convection currents.
What are tectonic plates
The number of different species in a given area is known as this.
What is species richness
The number of children that would be born to a woman if she were to live to the end of her childbearing years.
What is total fertility rate (TFR)
The worldwide campaign to increase agricultural production from the 1940s to 60s
What is the green revoultuion
Formed when primary pollutants interact with one another or with the air to form new pollutants.
What is secondary pollution
The movement of a fluid, caused by differences in temperature, that transfers heat from one part of the fluid to another
What are convection currents
Cattle, zebra, lions, prairie dogs live here
What is a grassland
High population growth, high birth rates, and rapid urbanization are qualities of what type of country
What are developing countries
Foods that are mostly products or organisms that have their genes altered in a laboratory for specific purposes, such as disease resistance
What are geneticaly modified crops
Formed by the reaction of nitrogen oxides and volatile hydrocarbons under the influence of sunlight.
What is photochemical smog
The percentage of solar radiation reflected by a surface
What is albedo
This law protects species that are considered at risk of extinction in the U.S
What is the Endangered Species Act (ESA)
All the limiting factors that tend to reduce population growth rates
What is environmental resistance
Method of forestry in which you only cut trees of a certain type, size, or quality
What is selective cutting
A layer of warm air sits over a layer of cold air, preventing the mixing, and dense, colder air becomes stagnant and accumulates more pollutants.
What is temperature inversion
convection current in the atmosphere that cycles between the equator and 30° N and 30° S.
What are Hadley cells
Often found between tropical rainforests and deserts, this biome has distinct wet and dry seasons and is dominated by grasses and scattered trees.
What is the savanna