Which event occurred during the cenozoic era?
(this is science)
a pangaea, the supercontinent, began to break apart.

b volcanoes and earthquakes made the surface of the earth hot and broken.

c humans lived on earth.

d cyanobacteria begin to fill the air and water with oxygen.

C humans living on earth

a adaptation is when organism changes itself to fit the environment

ex. when its cold outside i wear a jacket

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