The list below shows some events which took place at different periods in the geologic time scale.

1. sharks appear.
2. insects appear.
3. fishes with jaws appear.

which of these best orders the events from the earliest to the most recent?

3, 1, 2

3, 2, 1

1, 2, 3

1, 3, 2

option b

Step-by-step explanation:

In different geologic time scale different species came into existence

in the question we are given with three species so, the order in which these species are there is 3,2,1

so, option b) is correct.

in silurian period the fishes with jaw appeared and after that the insects appeared so these comes out to first two to appear first then comes sharks.

the probability that a bird is green (.30) is true

step-by-step explanation: