"Geography can be split into two fields; human geography and physical geography. For this essay, consider the field of human geography, which focuses on the ways humans interact with, and impact, the world around them. One of the ways humans impact the Earth is through the population; specifically, the idea that certain regions are more highly populated than others. Take the United States, for example. There are many more people living in large cities, such as New York, Chicago, Los Angeles, or Miami, than there are in more rural states like Montana or Nebraska. Why do you think that is? Expand on this idea by writing eight compelling questions that address this geographical evidence."

Express the following number in scientific notation. 0.026890 =

How have the greenhouse gasses increased from the year 2000 to 2018

These questions are based on the attached photo. the experiment is about burning magnesium metal with oxygen. 1. write the balanced chemical equation for the reaction you are performing. 2. calculate the mass of magnesium metal used in each trial. o trial 1: o trial 2: 3. calculate the actual yield of magnesium oxide for each trial. o trial 1: o trial 2: 4. magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. o trial 1: o trial 2: 5. determine the percent yield of mgo for your experiment for each trial. o trial 1: o trial 2: 6. determine the average percent yield of mgo for the two trials. your company currently uses a process with a similar cost of materials that has an average percent yield of 91 percent. if the average percent yield of this process is higher than that, this could save the company money. what is your recommendation to the company? support your recommendation using your data, calculations, and understanding of stoichiometry gathered from this lab.