Step 1 Write a thorough list of at reasons why the HBC and NWC were forced to merge in 1821. You
should consider all of the actions that had been going on for the two decades preceding the merger.
You are more than welcome to do more research on this merger on your own.​

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.