Which term describes the disappearance of all members of a species from Earth?

Which term describes the disappearance of all members of a species from Earth?

• A. Extinction
• B. Light bulb
• C. Hazardous waste
• D. Shelter

Answer: (A)

Extinction is the term for a species no longer existing anywhere on Earth. It happens when the last individual dies and there are no surviving members left to reproduce, meaning the species cannot continue. This global loss is different from things like local disappearances in one area or temporary declines, because extinction means the entire species is gone from the planet. A familiar example is the dinosaurs, which disappeared long ago, while many modern species face threats that could lead to extinction if conditions worsen. The other options describe things that aren’t about species status: a light bulb is just an object, hazardous waste is dangerous material, and shelter is a place for protection. None of these describe the complete disappearance of all members of a species.

Extinction is the term for a species no longer existing anywhere on Earth. It happens when the last individual dies and there are no surviving members left to reproduce, meaning the species cannot continue. This global loss is different from things like local disappearances in one area or temporary declines, because extinction means the entire species is gone from the planet. A familiar example is the dinosaurs, which disappeared long ago, while many modern species face threats that could lead to extinction if conditions worsen.

The other options describe things that aren’t about species status: a light bulb is just an object, hazardous waste is dangerous material, and shelter is a place for protection. None of these describe the complete disappearance of all members of a species.