click below
click below
Normal Size Small Size show me how
Bio CH32
Biology CH32 Solving Ecological Problems
Term | Definition |
---|---|
acid | liquids that have pH values lower than 7 |
acid rain | rain that has a pH between 1 and 5.5 |
base | liquids that have pH values greater than 7 |
biodegradable | something that can be broken down by microbes into harmless chemicals and used by other living things |
endangered | a species of living thing that is in danger of becoming extinct |
erosion | the wearing away of soil by wind and water |
fossil fuel | the remains of organisms that lived millions of years ago |
greenhouse effect | the trapping of heat near Earth’s surface by a layer of carbon dioxide |
natural resource | any part of the environment used by humans |
ozone | a molecule made up of three oxygen atoms that forms a layer high above Earth’s surface |
pesticide | chemicals used to kill unwanted pests |
pollution | anything that makes the surroundings unhealthy or unclean |
radon | a gas found in the ground that gives off radiation |
recycling | the reusing of resources |
sediment | material that settles on the bottom of a body of water |
smog | a combination of smoke and fog |
threatened | a species of living thing that is close to being endangered |
toxic | poisonous |