harmful chemicals in the atmosphere.
choice or decision.
graph using parallel bars of varying lengths to compare and contrast data.
to conduct or coordinate activities designed to achieve a social, political, or military goal.
person who is elected to the council, or governing body, of a town or city.
(singular: datum) information collected during a scientific study.
having to do with a government led by its citizens, who vote for policies and/or representatives.
to throw away or get rid of.
having to do with money.
area of land that has been prepared for agricultural use.
scientific studies done outside of a lab, classroom, or office.
(2,495 kilometers/1,550 miles) river in South Asia that originates in the Himalaya and empties into the Bay of Bengal. Also called the Ganga.
having to do with geography and location.
computer hardware and software which allows users to evaluate geographic data.
environment where an organism lives throughout the year or for shorter periods of time.
study of the past.
difference in size, amount, or quality between two or more things.
visual representation of data. Also called information graphic or graphic.
the process of getting data by asking people questions.
introduction of harmful materials into the surface environment.
group of people, usually elected, who make and change laws.
garbage, refuse, or other objects that enter the coastal or ocean environment.
community of living and nonliving things in the ocean.
piece of plastic between 0.3 and 5 millimeters in diameter.
to request, often by a form signed by the requestors.
chemical material that can be easily shaped when heated to a high temperature.
set of actions or rules.
person or organization responsible for creating government or organizational rules and behavior.
introduction of harmful materials into the environment.
course of actions, beliefs, and laws taken by a government having to do with a specific issue or concern.
descriptive information that does not use numbers.
to clean or process in order to make suitable for reuse.
to lower or lessen.
to give up, renounce, be unwilling to accept.
symbol of something.
scientific observations and investigation into a subject, usually following the scientific method: observation, hypothesis, prediction, experimentation, analysis, and conclusion.
person who studies and tries to discover facts about a specific problem, question, or field of learning.
to use again.
method of research in which a question is asked, data are gathered, a hypothesis is made, and the hypothesis is tested.
combination of social and economic factors.
text and graphics arranged in order along a line to give information about when events or phenomena occurred. Timelines are sometimes used on maps to give a better idea of how time relates to the data or theme represented.
material that has been used and thrown away.
collection, disposal, or recycling of materials that people have discarded.
the sum of wastes by a single entity.
introduction of harmful materials into a body of water.
animal that is not domesticated or trained to live safely around humans.
organisms living in a natural environment.