Gleeson Based purely on our understanding of planet formation in this solar system, we would EXPECT earth’s atmosphere to have very high levels of , fairly low levels of , and extremely low (or even zero) levels of .

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)

What is most often given a value of zero to describe an object’s position on a straight line? displacement reference point distance ending location

When a rock is mechanically weathered, the surface area of the rock is increased, which allows a greater amount of chemical weathering to occur. the surface area of the rock is increased, which hinders chemical weathering. the volume of the rock is decreased, which hinders chemical weathering. the volume of the rock is increased, which allows a greater amount of chemical weathering to occur. the surface area of the rock is decreased, which allows a greater amount of chemical weathering to occur