If you were to choose one, which of earth's spheres is the most important, and why?

Which factors add to the greenhouse effect and are caused by human activities?

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)

The biome that includes evergreen trees is the forest biome.