True or false: banded formation are trace fossils of the earliest life known on earth?

What kind os source would a historian use to get a firsthand account of a past event

Could anything have been done through compromise to stop it, or did it have to happen?

Hich explains why the constitution gave congress the power to create a system of federal courts? the constitution wanted congress to share power with the judicial branch. the constitution anticipated the need for courts lower than the supreme court. the constitution wanted congress to share power with the appellate courts. the constitution anticipated the need for courts equal to the supreme court.