Chemicals
This gas is the major cause for climate change.
What is carbon dioxide?
This law protects human health by setting emission limits on six air pollutants.
What is the Clean Air Act?
97% of the water on Earth is this type of water.
What is marine water?
This is the current world population in billions of people:
What is 8?
This is the ultimate source of energy for all living and non-living things on the Earth:
What is the Sun?
This gas is the primary component of air.
The Kyoto Protocol set standards for controlling this greenhouse gas:
What is carbon dioxide?
This is the age of the Earth, as determined by Clair Patterson's study of lead radioisotopes:
What is 4.5/4.6 billion years?
Individuals who move out of a population are said to have done this:
What is emigrate?
What is a population?
This is the primary form of nitrogen usable by plants.
What are nitrates/nitrites?
This law sets guidelines and protocols for the water treatment process.
What is the Safe Drinking Water Act?
We live in this layer of the atmosphere, the closest to Earth's surface.
What is the troposphere?
Worldwide trends show that as a family's income increases, the number of children they have does this:
What is decreases?
What is topsoil?
This strong greenhouse gas is associated with livestock and landfills.
What is methane?
This law helps the EPA identify and clean up hazardous waste sites.
What is CERCLA?
What is increased surface temperatures?
Studies indicate that this aspect of a female's life has a strong impact on the number of children she will bear in her lifetime:
What is education?
The majority of humans worldwide consume three major plants in their diet: rice, corn, and this plant.
What is wheat?
This group of chemicals are found in paints, furniture stains, upholstery, and carpeting.
What are volatile organic compounds?
This UN agreement banned "The Dirty Dozen," most of which were endocrine disruptors, from international commerce.
What is the Stockholm Convention?
This is the current geologic time period:
What is the quaternary?
These two major historical events are said to fueled the exponential growth in the human population in the past two centuries.
What is Germ Theory and Industrial Revolution
This agronomist is responsible for the "Green Revolution."
Who is Norman Borlaug?