Definition: A chemical compound that has two oxygen atoms in each molecule.

Example: Carbon dioxide is produced when we breathe out.

Definition: A group of harmful chemical compounds that can cause cancer and birth defects, often found as pollutants from industrial processes and certain herbicides.

Example: Dioxins are dangerous pollutants that can accumulate in the food chain and pose serious health risks.

Definition: A strong chemical used to kill unwanted plants, especially in water, and to dry out plants before harvesting.

Example: Farmers often use diquat to manage aquatic weeds in their fields.

Definition: A substance that is unclean, like mud or dust, often found on surfaces or in the ground.

Example: After the rain, the path was covered in dirt and mud.

Definition: More unclean or soiled than something else.

Example: The kitchen is dirtier than the living room after the party.

Definition: The condition of being unclean or having dirt on something.

Example: The dirtiness of the kitchen made it hard to cook.

Definition: Not clean; covered with dirt or grime, or morally wrong.

Example: The children came inside with dirty hands after playing in the mud.

Definition: Not clean; covered with dirt or stains.

Example: The child played outside and came back dirty.

Definition: To become unclean or stained.

Example: The children played outside and got dirty.

Definition: To make something unclean or to cause it to be covered with dirt.

Example: He accidentally dirtied his shirt while eating.

Definition: A serious event that causes a lot of damage, destruction, or suffering.

Example: The earthquake was a disaster that affected thousands of people.

Definition: To get rid of something that is no longer wanted or needed.

Example: He decided to discard the old newspapers that were piling up in the corner.

Definition: Something that has been thrown away or rejected because it is no longer wanted or needed.

Example: The player picked up a discard from the table.

Definition: To throw something away or get rid of it because it is no longer needed or wanted.

Example: She decided to discard the old clothes that she never wore.

Definition: Something that can be thrown away or is not meant to be kept.

Example: The packaging is made from a discardable material that is easy to recycle.