Over Salem, Oregon there is a marine polar airmass most of the year including May
Air masses form as air gathers in a specific area, and all the air has stable conditions such as a similar temperature and humidity. Air masses are often large as they cover multiple kilometers.
Moreover, the air masses can be:
- Marine
- Continental
- Tropical
- Polar
- Arctic
Salem, Oregon is in the west coast of the United States, in this area, the air masses are Marine due to the location near the ocean and Polar because the air is cold. Moreover, the location of this air mass is quite constant, this makes it likely the Marine Polar mass is over Oregon most of the days of the day.
Note: This question is incomplete because the year is not specified; however, I can answer it based on general knowledge
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The answer is
plants...
dams are man made...winds, they blows the soil away which causes erosion..rivers, they also cause erosion because when they flow, they carry the soil in the direction they r going n ump it somewhere else.
but plants, plants help breaks down soil n even makes more because the roots goes into the rocks n craks it up blah blah..and they hold the would from moving, like grasses do
I dont think my explanation was that good but I hope I helped a bit :)
The use of mechanized farming techniques is well suited to geographic areas that c. have large expanses of flat land. Regions such as the Canadian Prairies is a large expanse of flat land and as such easily supports mechanization in planting crops such as wheat. Mechanization in agriculture would be hampered in areas that experience frequent flooding as equipment could get stuck in mud or suffer other water damage.
The answer to this problem is Carbon dioxide is the waste product and it released into the atmosphere by active volcanoes. I hope this helps
Width and depth increases as more water is added from tributaries. Gradient (the slope of the land) decreases as rivers flow because the river meanders across the land rather than erode into it and follow a straight path as it does in the source.