Excuse. my. beauty122 is my sister

yes
or
no

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering