The Hadean is a time in Earth history when ____________.

A)the first abundant shelly organisms appear in the fossil record
B)Earth's interior was so hot that a solid outer crust,if present,was likely being extensively remelted
C)stable continental interiors,termed cratons,first formed
D)the dinosaurs appeared and came to dominate large-scale terrestrial life

Question

The Hadean is a time in Earth history when ____________.

A)the first abundant shelly organisms appear in the fossil record 
B)Earth's interior was so hot that a solid outer crust,if present,was likely being extensively remelted 
C)stable continental interiors,termed cratons,first formed 
D)the dinosaurs appeared and came to dominate large-scale terrestrial life

Quizplus · Accepted Answer

The Hadean is characterized by intense geologic activity, including extensive volcanic activity and the formation of Earth's first solid crust. However, due to the extreme heat generated by these processes, it is likely that any solid crust present was being extensively remelted. The first shelly organisms did not appear until much later in the Proterozoic Eon, and stable cratons did not form until the Archean Eon. The dinosaurs did not appear until the Mesozoic Era, long after the Hadean.

The Hadean Is a Time in Earth History When ____________