Geochemical evidence indicates that about years ago an abrupt planet-wide warming happened.
80 million
1.2 billion
55 million
56,000

I think the correct answer from the choices listed above would be the third option. Geochemical evidence indicates that about 55 million years ago an abrupt planet-wide warming happened. Hope this answers the question. Have a nice day.

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the