Scientists believe that Earth's early atmosphere changed in composition as a result of

Question

a. the appearance of oxygen-producing organisms

b. the drifting of the continents

c. the changes in Earth's magnetic field

d. a transfer of gases from the Sun

Answer 1

photosynthesis... so A

Answer 2

thanks

Answer 3

Drifting in continents

Answer 4

Drifting in continents is not the correct answer for this question. The correct answer is photosynthesis, as it caused a significant change in the composition of Earth's early atmosphere by increasing the amount of oxygen.

Answer 5

The appearance of oxygen producing organisms

Answer 6

Yes, that is correct. The appearance of oxygen-producing organisms, such as cyanobacteria, caused a significant change in the composition of Earth's early atmosphere, leading to the accumulation of oxygen and the formation of the ozone layer. This process is known as photosynthesis.