
To explain: The reason for the decrease in the atmospheric pressure with an altitude.

Answer to Problem 1LC
The atmospheric pressure usually decreases as the altitude increases because of the compressible nature of Earth’s atmosphere, and the weaker influence of Earth’s gravity at the higher altitudes.
Explanation of Solution
The atmospheric pressure can be defined as the force exerted by the mass of gas molecules on a unit area of Earth's surface as well as on any other body on Earth.
The atmosphere is composed of gases that contain mass. As atmosphere has a weight, this mass is being pulled towards Earth by gravitational force.
The atmospheric pressure is omnidirectional, means it exerts the force equally in all directions (above, below, sides, and diagonally).
The atmospheric pressure is about 14.7 pounds per square inch at the sea level. Atmospheric pressure decreases with an increasing altitude because the actual number of gas molecules is also reduced. As we move farther away from Earth and its gravitational pull, the number of gas molecules present in the atmosphere will be lesser.
Want to see more full solutions like this?
Chapter 5 Solutions
McKnight's Physical Geography: A Landscape Appreciation
- 1. Does urbanization increase or decrease the peak streamflow? 2. What is the effect of urbanization on lag time (the span between when rainfall occurred and when peak stream discharge occurred)? 3. Does total runoff occur over a longer or shorter time span after an area has been urbanized? 4. Based on what you have learned from the hydrographs in Figure 8.4, explain why urban areas often experience more flash-flooding than do rural areas during intense rainfalls.arrow_forwardLabel the drawing in Figure 8.2 with the letters that correspond to the following terms: Runoff Evaporation Infiltration Precipitation Groundwater Reservoirarrow_forwardUse Figure 8.1 as a reference to complete the following: 1. Globally, from which source does more water evaporate into the atmosphere: oceans or land? 2. Approximately what percentage of the total water evaporated into the atmosphere comes from the oceans?Percentage from oceans = Ocean evaporation/Total evaporation × 100% = _____ % 3. Notice in Figure 8.1 that more water evaporates from the oceans than is returned directly by precipitation. If sea level is not dropping, identify a source of water for the oceans in addition to precipitation. 4. Worldwide, about how much of the precipitation that falls on the land becomes runoff: 35, 55, or 75 percent? 5. Much of the water that falls on land does not immediately return to the ocean via runoff. Instead, it is temporarily stored in reservoirs such as lakes. In some mountainous and polar regions, what features serve as reservoirs to temporarily store water?arrow_forward
- Why did the Shiveluch erruption occur?arrow_forwardBackground/Synopsis You are working for the administrative or government apparatus of a city. Good credentials have resulted in you working in this position. The top echelon of the city government changed a few years ago, but they did not replace many staff. Nonetheless, the situation is such that the city is led by a corrupt mayor who has realized dded that elections are approaching. Opinion polls suggest that a significant part of the electorate has the environment as a major concern. Close associates of the mayor organized a focus group and chose to investigate several initiatives which they felt might be possible to conduct in a relatively short amount of time. Jual pro Metho The administration wants several projects examined. You have been tasked with conducting a cost benefit analysis on the construction of permeable pavements. The idea put forth is to replace A2_Call city alleyways with permeable pavements as a means to better manage water resources. Group -07- You are asked to…arrow_forwardProvide two paragraphs on your thoughts of the African dust and its impact on the environment. Please write in first personarrow_forward
- Answer the last question only. "Make a prediction where the next island in the Hawaiian island will form mark the location on the map"arrow_forwardDiscussion Question: Glacial (or Ice) and Periglacial Landscapes A+ The Ice and Glaciers chapter focuses on the Cryosphere, the ice on our planet. I always find it interesting to consider the Earth's Hydrologic Cycle, our water in all of the different phases: solid ice, liquid water, and water vapor (a gas). In place number one for the majority of the World's water, we have the oceans. In place number two, we have ice. Neither one is available to us for drinking water at this point. Amazingly enough, in place number three is groundwater before lakes and streams. Water has led to many problems in the history of California, the United States, and even the world. Nevada Idaho B) at Flats el Mone Lake Arizona Severe Dry Lake (c) Mono Lake, tufa towersarrow_forwardTitle: Urban water management integration with sustainable strategies brings resilience by implementing green infrastructure alongside wastewater recycling and climate-adaptive solutions. Outline of topic: Increased urbanization together with climate changes forces cities to find solutions for their simultaneous water shortage and flooding problems. The preservation of water resources needs sustainable urban water management strategies that combine ecological health maintenance with these priorities. This study investigates combined strategies that involve rainwater collection together with wastewater treatment and the deployment of green infrastructure consisting of urban wetlands alongside permeable pavements. The research aims to discover multi-purpose solutions that decrease flood dangers together with water shortages while maintaining ecological health for long-term urban water management success. The research investigates ways in which novel solutions assist cities to create…arrow_forward
- Evaporation Evaporation 320,000 km³ Oceans Hydrologic Cycle Precipitation Precipitation 96,000 km³ Precipitation 284,000 km³ Evaporation/Transpiration 60,000 km³ Runoff 36,000 km³ Runoff Infiltrationarrow_forward1. Globally, from which source does more water evaporate into the atmosphere: oceans or land? 2. Approximately what percentage of the total water evaporated into the atmosphere comes from the oceans?Percentage from oceans = Ocean evaporation/Total evaporation × 100% = _____ % 3. Notice in Figure 8.1 that more water evaporates from the oceans than is returned directly by precipitation. If sea level is not dropping, identify a source of water for the oceans in addition to precipitation. 4. Worldwide, about how much of the precipitation that falls on the land becomes runoff: 35, 55, or 75 percent? 5. Much of the water that falls on land does not immediately return to the ocean via runoff. Instead, it is temporarily stored in reservoirs such as lakes. In some mountainous and polar regions, what features serve as reservoirs to temporarily store water?arrow_forwardEnergy conservation is one way to decrease dependence on fossil fuels. What are some things that can be done at home, work, or school that would reduce fossil-fuel use and save money?arrow_forward
- Applications and Investigations in Earth Science ...Earth ScienceISBN:9780134746241Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. TasaPublisher:PEARSONExercises for Weather & Climate (9th Edition)Earth ScienceISBN:9780134041360Author:Greg CarbonePublisher:PEARSONEnvironmental ScienceEarth ScienceISBN:9781260153125Author:William P Cunningham Prof., Mary Ann Cunningham ProfessorPublisher:McGraw-Hill Education
- Earth Science (15th Edition)Earth ScienceISBN:9780134543536Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. TasaPublisher:PEARSONEnvironmental Science (MindTap Course List)Earth ScienceISBN:9781337569613Author:G. Tyler Miller, Scott SpoolmanPublisher:Cengage LearningPhysical GeologyEarth ScienceISBN:9781259916823Author:Plummer, Charles C., CARLSON, Diane H., Hammersley, LisaPublisher:Mcgraw-hill Education,





