Until the early there were only negligible amounts of free oxygen in the atmosphere

In a short paragraph, describe your hometown in terms of its population and impact. do you live in a town or a city? is your home a higher-order or lower-order settlement? how does your hometown interact with other towns in its region? (houston)

Quais são as consequencias (positivas e negativas) da extração dos minerais metálicos

Explain the reason for having an equator and a prime meridian. how do these two lines us to navigate our world? describe your opinion in at least two to three sentences.