Population
This term describes all the members of one species living in a given area.
What is a population?
Cutting trees, growing crops, and removing minerals are these three human uses of land.
What are timber production, agriculture, and mining?
This three-part slogan sums up the best ways to cut down on waste.
What is reduce, reuse, recycle?
These facilities burn fossil fuels to make electricity and are a major source of air pollution.
What are power plants?
True or false: the greenhouse effect is helpful to life on Earth.
What is true? It traps heat and warms Earth's surface so that it can support and maintain life.
This is the highest number of a species that Earth's resources can support over the long term.
What is carrying capacity?
About this percentage of Earth's habitable land is used for agriculture.
What is 50%?
Urban green spaces such as parks do these three things for a community.
What is provide recreational opportunities, decrease runoff, and improve air quality?
Name these five major air pollutants: smog formed by sunlight, tiny solid and liquid bits, acid rain and snow, ozone-destroying chemicals, and a gas from incomplete burning.
What are photochemical smog, particulate matter, acid precipitation, CFCs, and carbon monoxide?
Name four sources of carbon dioxide released into the atmosphere.
What are burning wood, burning fossil fuels, cellular respiration, and decaying organisms?
A population's carrying capacity and its available supply of these are directly related.
What are resources?
Cities spreading outward onto undeveloped land is called this, and it brings more of these onto the road.
What are urban sprawl and more motor vehicles?
Replanting trees in an area where forests were cut down or destroyed is called this.
What is reforestation?
This is how CFCs damage the ozone layer.
What is it that CFCs react with sunlight and destroy ozone molecules, making the ozone layer thinner and more susceptible to UV rays from the sun?
Burning fossil fuels contributes to this gradual rise in Earth's average surface temperature.
What is global warming?
True or false: every population has a limit to how large it can grow.
What is true? Every population has a carrying capacity (limit).
To make sure a landfill is not contaminating water supplies, workers do this.
What is monitoring the quality of groundwater?
Restoring land damaged by mining back to a healthy, usable state is called this.
What is reclamation?
Ground-level ozone and other air pollution can cause these health effects.
What are headache, fatigue, nausea, vomiting, reduced lung function, increased asthma attacks, chest tightness, shortness of breath, throat irritation, coughing, and irritation of the eyes and nose?
The greenhouse effect happens when certain gases in the atmosphere do this with thermal energy from the sun.
What is absorb and reradiate it?
These human advances have helped raise Earth's carrying capacity for people.
What are increased healthcare, clean water, and technology advances?
This is how a modern landfill keeps pollutants out of soil and groundwater and keeps trash from blowing away.
What are liners to prevent pollutants from reaching the soil and groundwater, and a soil cover to prevent trash from blowing away?
The Clean Air Act is an example of this kind of law.
What is a law that sets limits on the amount of certain pollutants that can be released into the air?
At this Air Quality Index level, highly sensitive people should limit prolonged outdoor activity.
What is moderate?
Explain what causes global warming and what it does to Earth's surface.
What is greenhouse gases in the atmosphere increase, thus increasing temperatures on Earth's surface?