Final answer:
Used engine oil is a hazardous substance that falls under the category of toxic waste due to its potential harm when ingested or absorbed. It is composed of hydrocarbons and can contaminate water sources and soil when improperly disposed of or leaked into the environment.
Step-by-step explanation:
Used engine oil is a specific example of a hazardous substance. It falls under the category of toxic waste because it can be harmful when ingested or absorbed. Used engine oil is a hazardous substance that falls under the category of toxic waste due to its potential harm when ingested or absorbed. It is composed of hydrocarbons and can contaminate water sources and soil when improperly disposed of or leaked into the environment.
Engine oil is composed of hydrocarbons, which are organic compounds made up of carbon and hydrogen atoms. When engine oil is improperly disposed of or leaked into the environment, it can contaminate water sources and soil, posing a threat to aquatic life and ecosystems.