Answer:
1, 3, 9, 27, 81, is a geometric sequence.
Explanation:
A geometric sequence is basically a sequence of numbers that's multiplied by or divided one specific set number each time.
0, 2, 6, 12, 72, does not have a set number it is multiplied or divided by each time.
4, 9, 14, 19, 24, adds 5 each time, it doesn't multiply