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Population
Pollution & Agriculture
Ecosystems 1
General Science
Ecosystems 2
100
The current size of the human population.
What is about 7 billion
100
A smoke stack is an example of this type of pollution
What is point source
100
The maximum population of a species that a habitat can support.
What is carrying capacity
100
A possible explanation for an observation.
What is a hypothesis
100
The place where an organism lives.
What is habitat
200
The term used to describe the current human population growth curve.
What is exponential growth
200
Urban runoff is an example of what type of pollution
What is non-point source
200
The using up of common resources that are not considered to be owned by any country.
What is tragedy of the commons
200
Contains the variable that is changed in a known way.
What is the experimental group
200
A group of individuals of the same species living in a particular area.
What is a population
300
Three factors that decrease death rates in humans.
What are better nutrition, safer water, improvements in medical, better food supply and distribution
300
Kill only the target pest, break down slowly and not cause genetic resistance
What is the ideal pesticide
300
In regards to matter and in regards to energy the earth is considered these two systems.
What is closed and open
300
The first law of thermodynamics (energy) states this.
What is energy cannot be created nor destroyed
300
Summary or "slogan" of the precautionary principle
What is "better safe than sorry"
400
If a nation has a 3.5% growth rate it will take this many years to double.
What is 35 years
400
The goal of IPM (integrated pest management)
What is reduction of crop damage using 2 or more methods
400
This type of ecological pyramid explains why there are only 4-5 links in a food chain.
What is an energy pyramid
400
The biggest "sinks" for carbon.
What are oceans and phytoplankton
400
Net primary productivity.
What is the rate at which energy for use by consumers is stored in biomass
500
Population of 100 million with a growth rate of 3.5% in 40 years.
What is 400 million
500
Name of the process by which higher concentrations of toxins are found in tertiary consumers
What is biomagnification
500
The form of nitrogen most usable by plants.
What is nitrate
500
Name of the process describing bacteria converting ammonia into nitrites and nitrates.
What is nitrification
500
Type of information that can be obtained through the Red List.
What is information regarding endangered species