Contributions de SarahH

23 avril 2020

• 22:1523 avril 2020 à 22:15 diff hist −25‎ OHS2020 Chap5 ‎ →‎How was the ancient climate ? Balise : Éditeur visuel
• 22:0023 avril 2020 à 22:00 diff hist +729‎ OHS2020 Chap5 ‎ →‎New Question

27 mars 2020

• 19:5627 mars 2020 à 19:56 diff hist +23‎ OHS2020 Chap1 ‎ →‎Why is fossilization considered as a rare process?