Question

u3 l4 drill review of earth viewer
1 of 5
put the following events in order from oldest to most recent:
first land plants
formation of earth
dinosaur extinction
great oxygenation event

Explanation:

1. The formation of Earth is the oldest event, occurring ~4.5 billion years ago.
2. The Great Oxygenation Event followed, happening ~2.4-2 billion years ago as cyanobacteria filled the atmosphere with oxygen.
3. First land plants emerged much later, around 470 million years ago during the Ordovician period.
4. Dinosaur extinction is the most recent event, taking place ~66 million years ago.

Answer:

1. Formation of Earth
2. Great Oxygenation Event
3. First land plants
4. Dinosaur extinction