Earth and Atmospheric Science Flashcards
1
Q
What did the Earth’s Early atmosphere Contain? 4 different
A
(i) little or no oxygen
(ii) a large amount of carbon dioxide
(iii) water vapor
(IV) small amounts of other gases
2
Q
Explain how condensation of water vapour formed Oceans
A
Process called outgassing
3
Q
Chemical Test for Oxygen
A
Check if the gas will relight a glowing splint
4
Q
The early earth was much hotter than it is today. What happened to the water vapour in the atmosphere as the earth cooled.
A
The water Vapour condensed to form Oceans
5
Q
What has the General Change in global temperatures been over the past 100 years?
A
CO2 has increased rapidly over the last 100 years
6
Q
2 Examples of Green House Gases
A
Carbon Dioxide
Methane
