Geography, 29.10.2019 15:31 mikeylaaliz5901
Early in the earth's history there was little to no oxygen into atmosphere. how did oxygen levels in the atmosphere reach current levels?
a) volcanoes released oxygen from within the earth.
b) the earth captured oxygen from space with its gravity.
c) water molecules on the earth were broken to release oxygen.
eliminate
d) early bacteria and plants released oxygen through photosynthesis.
Answers: 2
Another question on Geography
Geography, 22.06.2019 20:00
What events caused the united states to intervene in southwest asia?
Answers: 1
Geography, 22.06.2019 21:00
Me plzzz what is the ratio of water than falls on land as compared to the amount that falls onto the oceans? what role do clouds play in regulating earth’s energy balance? me plzzz
Answers: 1
Geography, 23.06.2019 11:30
Which describes italy’s mediterranean climate? a. moist in the summer and dry in the winter b. mild and wet all year round c. cool in the summer and warm in the winter d. hot in the summer and mild in the winter
Answers: 2
Geography, 23.06.2019 16:30
Southeast asia relies on its many because of the volcanic, mountainous terrain. a. highways c. rivers b. airports d. lakes
Answers: 2
You know the right answer?
Early in the earth's history there was little to no oxygen into atmosphere. how did oxygen levels in...
Questions
Spanish, 07.05.2021 14:00
Chemistry, 07.05.2021 14:00
Mathematics, 07.05.2021 14:00
Arts, 07.05.2021 14:00
World Languages, 07.05.2021 14:00
Mathematics, 07.05.2021 14:00
Computers and Technology, 07.05.2021 14:00
Physics, 07.05.2021 14:00
Social Studies, 07.05.2021 14:00
Mathematics, 07.05.2021 14:00
