LAB 3: Atmospheric Pressure & Moisture Our atmosphere is a very dynamic area-esp

Question

LAB 3: Atmospheric Pressure & Moisture Our atmosphere is a very dynamic area-especially when we see what type of interactions it has with the surrounding environment. This lab will begin discussing the ideas behind atmospheric gasses pressure,bumidity and temperature Beginning with pressure, the air in the atmosphere is made up of a number of gases; we can differentiate them two ways, either as a permanent or variable gas What this means are those permanent gasses of the atmosphere do not change, these percentages are constanm and will remain so long after we are gone but for variable gasses-these gasses can change, and they de 1. What are the top two permaneet gasses found in our atmosphere? 2. What are the top two variable gasses found in our atmosphere? 3. With variable gasses, why are they variable? What can Back to pressure, these permanent and variable gases press down on the Earth's surface, exerting a force that we call atmospherc pressure or alir pressure. lthough we are usually unaware of this pressure, it actually presses down very hard- roughly equivalent to the force of an elephant balancing on your shoulders 4 T or F Air peessure is higher at lower altinudes. Air density is higher at lower altitudes 6 Tor F There is more space between air molecules at higher altitudes .TorF There is less oxygen to breathe at the top ofa high mountain than there is at sea level Patrich Physical Geography Lab 1 Temperature&Specifics; about the Atmosphere Tropesphere Known as the lower atmosphere almost all weather oocurs in this region The troposphere begins at the Earth's surface a estends from 4 to 12 miles (6 to 20 km) high 110,000 Thermosphere 90,000 ls the density of the gases in this layer decrease with heig the air becomes thinner

Explanation / Answer

The top two permanent gases found in the atmosphere are Nitrogen (78.09%) and oxygen (20.98%). The top two variable gases found in the atmosphere are Water vapor (1%) and Carbon di oxide (0.04%). The variable gases are variable in amounts in the atmosphere because their amounts vary with the temperature and pressure in the atmosphere. In atmosphere, the temperature and pressure keeps on varying. False. Explanation: Pressure is lower at higher altitudes. Pressure decreases with height in the atmosphere. False. Explanation: Density is lower at higher altitudes. This is the reason that water vapor rises to a certain height. Because low density means low weight. True. Explanation: There is more space between air molecules at higher altitudes because the molecules have less density at higher altitudes. Less density means more volume and the spacing is more. True. Explanation: There is less oxygen at higher altitude because of the higher density of oxygen they stay towards the surface of the earth i.e. in the surface of the earth.

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