Chemistry revision c1 topics 0.0 / 5 ? ChemistryThe earth and its atmospherePaints and oilsGCSEAQA Created by: Zoe JohnsonCreated on: 17-11-13 15:19 What is the Earth's structure? Inner core, outter core, mantle, crust 1 of 6 What is the Earths core made up of? Nickle & Iron 2 of 6 When was the Earth formed? APROX. Billions of years ago 3 of 6 1st atmosphere mainly contained..... Hydrogen and helium gas 4 of 6 What did the early atmosphere contain? carbon dioxide, methane, ammonia and water 5 of 6 What did photosynthesis replace? Carbon dioxide with oxygen 6 of 6
Comments
No comments have yet been made