resource - Factors in an ecosystem that the species rely on. Examples: food, water, atmospheric gases, shelter, mates, territory, etc., competition - Conflict between (or within) species for existing available resources. This results from growing population sizes., natural resource - Materials on our planet used by humans for many resources; often used for a source of ENERGY. , renewable resource  - Any material on the planet that is always available for use or is able to be replaced pretty quickly. , nonrenewable resource  - Any material on the planet that is NOT able to be replaced in a useful amount of time, and could therefore run out., developmentalist  - A perspective that states that humans should be allowed to use all of earth's resources (land, animals, oil, plants, etc.) for their benefit, no matter the cost or effect on the environment. "Motto" = USE RESOURCES FOR MONEY/BENEFIT. , preservationist  - A perspective that states that humans should not use earth's resources (especially ones not able to be replaced), no matter how beneficial they may be to us - because all species should be treated with respect. "Motto" = DO NOT USE RESOURCES. , conservationist  - A perspective that states that humans should be allowed to use earth's resources as needed, as long as they do so in a responsible manner. "Motto" = USE, BUT DON'T ABUSE, RESOURCES. , pollution - The release of harmful substances into the environment, often affecting the water or air. This can come from man-made or natural sources., greenhouse effect  - The trapping of solar heat near the earth's surface, caused by natural levels of certain gases in our atmosphere. Because of this, our temperatures stay 'normal' and life on our planet can exist. Without this, our daily temperatures would be about 100 degrees F colder - too cold for life! , global warming  - The intensified trapping of solar heat near the earth's surface, due to larger amounts of certain gases in our atmosphere. We know it's happening: we can measure the higher levels of gases and the warmer temperatures. The reason it's a theory is due to questions about how much of an influence humans have on these changes., climate change - A difference in the global or regional patterns of temperature and precipitation, largely linked to increased levels of carbon dioxide (and other gases) in the atmosphere. These changes can significantly affect the ability of certain species to live in certain ecosystems., carbon dioxide  - One of the gases in our atmosphere that naturally keeps in some of the sun's heat around earth's surface. Too much of this gas (from the burning of trees & fossil fuels) can cause too much solar heat to be trapped. , nitrous oxide - One of the gases in our atmosphere that naturally keeps in some of the sun's heat around earth's surface. It's the most "powerful" greenhouse gas and is THE BEST at absorbing heat. Too much of this gas (from agriculture & transportation emissions) can cause way too much solar heat to be trapped. , methane  - One of the gases in our atmosphere that naturally keeps in some of the sun's heat around earth's surface. It's a more "powerful" greenhouse gas than CO2 and is very good at absorbing heat. Too much of this gas (from an increase of agriculture farms, the burning of fossil fuels, & melting of underground Arctic ice) can cause too much solar heat to be trapped., x-axis - The bottom/horizontal axis of any graph, where the IV is typically plotted, y-axis - The left/vertical axis of any graph, where the DV is always plotted, independent variable - The experimental factor that is intentionally changed or controlled to determine the effect it has on the results of the study. This is usually plotted on the x-axis. , dependent variable - The experimental factor that is being tested and measured in a study. (The 'data' the scientist gathers.) This is usually plotted on the y-axis., microplastics - Extremely tiny pieces of plastic in the environment. They form as bigger plastic items break down. These are especially causing problems for marine wildlife that accidentally eat them (thinking they're food). These are also showing up in our food and water supply., dead zone - An area (or areas) in a body of water with too little dissolved oxygen to support aquatic life. These are caused by algae blooms (from too many nutrients) or excess sediment. The area can grow/shift/move over time., nutrient - A substance that provides a "boost" for an organism and helps it grow. Too much of this can be a bad thing for an ecosystem. Common types causing problems in the Chesapeake Bay are nitrogen & phosphorus. , surface runoff - water that flows (downhill) over the ground after a rain event (it does not immediately get soaked into the ground),

Unit 10 GOLD 23.24

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