Which of the following statements is TRUE concerning the temperature of the ocean about 4 billion years ago?
A) The temperature was about the same as today's ocean.
B) The temperature was much colder than that of today's ocean.
C) The temperature was extremely hot as compared with today's ocean.
D) The temperature was only slightly warmer than today's ocean

Question

Quizplus · Accepted Answer

The ocean temperature was likely extremely hot about 4 billion years ago due to the higher levels of atmospheric greenhouse gases and the lack of a stable climate system. This is known as the "Hadean Eon," and it is thought that the ocean temperature could have reached as high as 200°C (392°F), far hotter than today's ocean temperature.

Which of the Following Statements Is TRUE Concerning the Temperature