<h2><u>Answer:</u></h2>
Researchers can decide whether oxygen existed in Earth's Archean air by searching for oxidized iron in rock. In the first place, there was just an almost no oxygen in the air. The oxygen that are being created by cyanobacteria is sufficient for the enduring procedure.
There will sufficiently just oxygen that will stay in the climate when the stones at the surface are appropriately and enough oxidized. In any case, as time passes by, confirmations said that the measure of oxygen in the Archean air is really expanding in a moderate enduring pace.
Answer:
The volcanos are called cinder cone
Explanation:
The main causes of erosion are due to:<span>Water.
Wind.
Glaciers.
<span>People.
Hope this helps!
</span></span>。.:☆*:･'(*⌒―⌒*)))
Answer:
Geographic technologies are increasingly some of the most important emerging fields for understanding our complex world. Tools such as GIS allow us to view, understand, question, interpret, and visualize data in many ways that reveal relationships, patterns, and trends in the form of maps, globes, reports, and charts.
I hope it helps.
Have a great day.
