Question

Scientists estimate that the composition of Earth’s atmosphere has changed over time. Which of the following most likely caused Earth’s atmosphere to support diverse life-forms?

A: the drift of continents
B: a transfer of gases from the Sun
C: changes in Earth’s magnetic field
D: oxygen-producing organisms

Answer 1

D. oxygen-producing organisms

Step-by-step explanation:

oxygen is the foundation for life on Earth. Also by process of elimination, drift of continents, gases from the Sun, and changes in magnetic field do not significantly impact supporting diverse life forms.