Evolution of the atmosphere

Descrição

Evolution of the atmosphere
pam.hinton61
Quiz por pam.hinton61, atualizado more than 1 year ago
pam.hinton61
Criado por pam.hinton61 mais de 9 anos atrás
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Resumo de Recurso

Questão 1

Questão
Which of these statements are correct about earths early atmosphere??
Responda
  • Most of the atmosphere in early earth was made up of carbon dioxide, there was nearly no oxygen!
  • The earths atmosphere has always stayed the same, it has always been made up of mainly oxygen!
  • The earths atmosphere has always stayed the same, it has always been made up of mainly nitrogen!

Questão 2

Questão
The earths atmosphere now is mainly made up of nitrogen!
Responda
  • True
  • False

Questão 3

Questão
What was the earths surface originally like??
Responda
  • It was originally like a plane of ice and snow!!
  • It was originally molten!!
  • It was the same as it is today!!

Questão 4

Questão
What gases do volcanoes give out when they erupt??
Responda
  • carbon dioxide, water vapour and small amounts of other gases!
  • nitrogen and carbon dioxide!
  • nitrogen, water vapour, carbon dioxide and small amounts of other gases!

Questão 5

Questão
As no one was around in earths early atmosphere, how do scientists give an idea of what it was like??
Responda
  • They guess!!
  • They travel back in time!!
  • They evaluate dormant volcanoes that have survived that long!!
  • They use what the atmospheres of other planets are like, Mars and Venus, today!!

Questão 6

Questão
How did the CO2 in earths early atmosphere decrease??
Responda
  • The CO2 dissolved in the oceans that formed!!
  • It evaporated!!

Questão 7

Questão
Marine organisms also took part in increasing the amount of oxygen in the air!!
Responda
  • True
  • False

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