Craters on planet surfaces are the result of impacts by large objects such as asteroids and comets. The impact of a 10 km diameter asteroid that struck Earth 65 million years ago is believed to have caused the mass extinction of over 70 percent of all living species at that time. Place these results in sequence as they occurred. Items in order Items (5 items) (Drag and drop into the appropriate area) Farliest event (Drag and drop into the appropriate area) Earliest event Existing species die from hostile conditions. The atmosphere clouds with dust and debris. Asteroid impact creates a crater, New species evolve in ecological niches. Firestorms sweep the planet.
