The table shows different geologic time periods: Period Number of Years Ago Jurassic 2.08 â‹… 108 Silurian 4.38 â‹… 108 Tertiary 6.64 â‹… 107 Triassic 2.45 â‹… 108

Order the time periods from oldest to youngest. (4 points)

1. Tertiary, Jurassic, Triassic, Silurian
2.Jurassic, Triassic, Silurian, Tertiary
3.Silurian, Triassic, Jurassic, Tertiary
4.Triassic, Silurian, Jurassic, Tertiary