mancher
Answered

Zoofast.fr: où vos questions rencontrent des réponses expertes. Posez vos questions et obtenez des réponses rapides et bien informées de la part de notre réseau de professionnels expérimentés.

Bonsoir pourriez-vous m’aider svp, merci

Bonsoir Pourriezvous Maider Svp Merci class=

Sagot :

Réponse:

  1. Wrong , it was the American weather station that recorded high levels of CO2 in the atmosphere , more exactly : 400ppm
  2. Right
  3. Wrong, the last time that Earth saw this level was five million years ago
  4. Wrong it can stay in the atmosphere hundreds of years.
  5. Wrong , scientists know that this was caused by human activity .