Pricing
Login
Login
Quiz MakerFlashcard MakerNote MakerStudy Guide MakerPodcast GeneratorAI Tutor
PDF to QuizPDF to NotesPDF to FlashcardsPDF to PodcastVideo to NotesView all use cases
Exam prep
NCLEX-RN QBank (Beta)
Subjects
MedicineNursingDentistryLawPharmacy
Pricing
AQA Geography A-Level: Water and Carbon Cycles

AQA Geography A-Level: Water and Carbon Cycles

Explore the water and carbon cycles relevant to the AQA Geography A-Level syllabus. Study the components of systems, including inputs, outputs, stores, and flows. Understand the differences between open and closed systems, dynamic equilibrium, and positive and negative feedback loops.

Recommended next

25 questions ready

Start with a quiz

Answer from memory first, then use the existing quiz review flow for anything you miss.

Activities

Quiz25 Questions
Flashcards25 Cards
Study Notes1 Note
Podcast1 Episode

Modules

Learn in sequence

Start with the earlier modules and work forward. Each one builds on the last, so the course gets more advanced as you go.

AQA Geography A-Level: Water and Carbon Cycles

Quiz • 25 Questions

AQA Geography A-Level: Water and Carbon Cycles - Flashcards

Flashcards • 25 Cards

Study Notes

11 min • Summary

Podcast

Podcast

Materials

List of Questions25 questions
  1. Question 1
    • Dynamic equilibrium in the water cycle refers to a state where inputs and outputs are equal despite changing conditions. This equilibrium can be disrupted by factors like deforestation, urbanization, or climate change, which alter the rates of infiltration, runoff, and evapotranspiration, leading to imbalances.
  2. Question 2
    • Convectional rainfall, common in tropical regions, results from the sun heating the ground and warm air rising, condensing, and falling as rain. Relief rainfall occurs when air is forced upward by mountains, causing condensation and precipitation on the windward side, resulting in a drier leeward side. Frontal rainfall arises when warm air rises over cooler air, condensing and causing precipitation. Each type affects the spatial distribution and intensity of rainfall, influencing vegetation patterns, soil erosion, and water availability.
  3. Question 3
    • Urbanization introduces impermeable surfaces like roads and buildings, reducing infiltration and increasing surface runoff. This alters the water balance by decreasing groundwater recharge and increasing the risk of flooding. Drains exacerbate this effect, rapidly channeling water away rather than allowing it to naturally percolate into the soil.
  4. Question 4
    • During autumn, increased precipitation and decreased evapotranspiration lead to soil moisture recharge and a water surplus. Winter sees minimal evapotranspiration and continued precipitation, refilling soil water stores. Spring brings increased evapotranspiration as plants grow, gradually reducing the water surplus. Summer features high evapotranspiration and minimal rainfall, depleting soil water and potentially causing a water deficit.
  5. Question 5
    • The ITCZ, a low-pressure zone near the equator, is characterized by intense rainfall and is responsible for monsoonal patterns. Its seasonal movement affects rainfall distribution across tropical regions. The convergence of the Hadley and Ferrel cells causes unstable weather, influencing rainfall patterns and climate variability in temperate zones.
  6. Question 6
    • Climate change is expected to increase the probability of more frequent and intense El Niño events. This could lead to more extreme weather patterns, including increased flooding in some regions and severe droughts in others. Changes to these patterns could disrupt regional and global water cycles, impacting agriculture, water resources, and ecosystems.
  7. Question 7
    • Glacial melting contributes to rising sea levels, threatening coastal communities and ecosystems. It also initially increases freshwater runoff, but as glaciers disappear, it reduces long-term freshwater availability, impacting agriculture and water supplies in glacier-dependent regions.
  8. Question 8
    • Irrigation extracts water from surface and groundwater sources, often at unsustainable rates, leading to groundwater depletion and reduced river flows. Deforestation reduces interception and evapotranspiration, increasing surface runoff and soil erosion. The loss of topsoil reduces soil fertility and its capacity to store water, exacerbating water scarcity.
  9. Question 9
    • Flashy hydrographs, characterized by short lag times and high peak discharge, occur in basins with steep slopes, impermeable surfaces, small size, and high drainage density. Subdued hydrographs, featuring long lag times and low peak discharge, are typical of basins with gentle slopes, permeable surfaces, large size, and low drainage density.
  10. Question 10
    • Urban areas have extensive impermeable surfaces, reducing infiltration and increasing surface runoff. This leads to shorter lag times between rainfall and peak discharge, resulting in flashy hydrographs and increased flood risk. Drains rapidly channel water away rather than allowing natural absorption.
  11. Question 11
    • Deforestation reduces interception and evapotranspiration, leading to increased surface runoff and decreased soil water storage. As a result, flood control diminishes because the soil's capacity to absorb water is reduced.. Water availability declines during dry periods, impacting agriculture and ecosystems.
  12. Question 12
    • Forests promote infiltration due to root systems creating pathways and increasing soil organic matter. Grasslands have moderate infiltration, while exposed soil has the lowest. Lower infiltration increases overland flow, elevating flood risk and soil erosion. Managing vegetation is therefore key to water infiltration.
  13. Question 13
    • The water balance equation (Precipitation = Total Runoff + Evapotranspiration +/- Storage) helps predict droughts or floods by comparing water inputs and outputs. High precipitation and low runoff, or a negative storage change, indicate potential flooding, while the reverse shows a risk for droughts. Accurate precipitation, evapotranspiration, and storage data are essential for reliable predictions.
  14. Question 14
    • Spring brings increased vegetation growth, leading to higher interception rates and reduced runoff. Summer sees peak evapotranspiration, depleting soil moisture. Autumn causes decreased interception due to leaf fall and increased groundwater recharge. Winter features minimal interception and frozen soil, reducing runoff.
  15. Question 15
    • During the day, plants photosynthesize, absorbing more CO2 than they emit, leading to net carbon dioxide uptake. At night, respiration releases carbon dioxide, reducing the carbon sink effect. Annually, photosynthesis exceeds respiration, making vegetation a net carbon sink, critical for regulating atmospheric CO2.
  16. Question 16
    • CCS captures CO2 from power plants, reducing atmospheric emissions. However, CCS is costly, raises energy demand, has limited space for implementation, and increases fossil fuel use. While effective, these drawbacks limit its widespread use.
  17. Question 17
    • Carbonation weathering involves CO2 dissolving in rainwater to form carbonic acid, which erodes rocks like limestone. This releases carbon that eventually enters the oceans. Elevated atmospheric CO2 increases carbonic acid production, accelerating weathering and potentially increasing carbon flow into oceans.
  18. Question 18
    • Fossil fuels form from organic matter, specifically marine organisms and vegetation, that are compacted over extended periods. Burial and compaction forms oil, gas, and coal. These deposits store vast amounts of carbon removed from the atmosphere over millions of years.
  19. Question 19
    • A lithosere is a plant succession starting on bare rock, accumulating soil through organic matter, which is very long-term carbon storage. A hydrosere begins in freshwater, with plants colonizing sediment and gradually creating more biomass, which also represents long-term carbon storage. The main differentiator is the amount of water in the area.
  20. Question 20
    • Marine sediments and sedimentary rocks store very large amounts of carbon, in fact it is the largest store. The processes through which carbon is recycled are the rock cycle and continental drift. These processes can typically take millions of years.
  21. Question 21
    • Radiative forcing refers to the difference between incoming solar radiation absorbed by the Earth and energy radiated back. The enhanced greenhouse effect is high levels of produced greenhouse gasses which abnormally increase radiation from the sun that is trapped. Natural is the long term radiation maintained by the planet without excessive greenhouse gasses.
  22. Question 22
    • Thawing permafrost releases CO2 and methane. Methane has a stronger warming effect. As this permafrost continues melting, it will further gas releases, intensifying global warming and perpetuating the cycle.
  23. Question 23
    • Changes with the jet stream move where Hadley and Ferrel cells meet. This creates unstable weather causing changeable conditions with the water cycle, such as higher or lower than normal rainfalls during typical seasons.
  24. Question 24
    • Land drainage in moorland lowers the water table, increasing streamflow and increasing surface flooding since surface water storage is reduced. The decaying organic matter and vegetation is degraded easily, releasing carbon dioxide and affecting its potential as a long-term carbon store.
  25. Question 25
    • Carbon fertilization is more CO2 causes more plant absorption and growth in plants, absorbing more CO2 and resulting in decreased atmosphere. Carbon fertilization is limited by water levels. If rain decreases, the mechanism will not be as effective as water is required for photosynthesis.
List of Flashcards25 flashcards
  1. Card 1
    HintWhat enters the system?Memory TipThink of 'Input' like adding ingredients to a recipe.
  2. Card 2
    HintWhat exits the system?Memory TipThink of 'Output' like the finished meal from a recipe.
  3. Card 3
    HintWhere is matter/energy accumulated?Memory TipStores are like accumulated savings.
  4. Card 4
    HintHow does matter/energy move?Memory TipFlows are like rivers carrying water.
  5. Card 5
    HintWhat defines the system's extent?Memory TipA boundary is like the fence around a garden.
  6. Card 6
    HintSystems interacting with their surroundings?Memory TipOpen door letting things in and out.
  7. Card 7
    HintNo net exchange with environment?Memory TipClosed container: nothing enters or leaves.
  8. Card 8
    HintSystem maintains balance?Memory TipSee-saw adjusting to keep balance.
  9. Card 9
    HintEffect gets bigger?Memory TipSnowball rolling downhill gathers more snow.
  10. Card 10
    HintEffect reduced, stabilizing the system?Memory TipThermostat turns off when it reaches set temperature.
  11. Card 11
    HintRain, snow or hail?Memory TipWater falling from the sky is precipitation.
  12. Card 12
    HintSun heats the ground?Memory TipConvection oven: heat rises causing rain.
  13. Card 13
    HintCaused by mountains?Memory TipRelief like 'raised' mountains lifting air.
  14. Card 14
    HintWarm vs. cold air masses?Memory TipThink of a 'front' where air masses meet.
  15. Card 15
    HintWater changing from liquid to gas?Memory TipEvaporation + plant Transpiration.
  16. Card 16
    HintPlants breathing out water?Memory TipPlants releasing water vapor.
  17. Card 17
    HintWater leaving in rivers?Memory TipStream flowing out of a basin.
  18. Card 18
    HintWater entering the ground?Memory TipInfiltration is like absorption.
  19. Card 19
    HintWater seeping into rock?Memory TipPercolation is like a coffee filter.
  20. Card 20
    HintTop layer of saturation?Memory TipWater table: underground water level.
  21. Card 21
    HintInputs and outputs water?Memory TipA ledger tracks water income and expense.
  22. Card 22
    HintReleases more carbon than it stores?Memory TipA factory emits smoke/pollution.
  23. Card 23
    HintTakes in more carbon than it releases?Memory TipVirgin forest stores trees.
  24. Card 24
    HintCaused from human activity?Memory TipAdding more 'blankets' to the Earth.
  25. Card 25
    HintHow much water is released at the end?

Footer

DiscordTiktokInstagramXFacebookSupportChrome

Tools

  • AI Quiz Generator
  • AI Flashcard Generator
  • AI Note Maker
  • AI Podcast Generator
  • AI Study Guide Maker
  • AI Tutor

Subjects

  • Medicine
  • Nursing
  • Dentistry
  • Law
  • Pharmacy

Resources

  • Blog
  • API
  • Help Center
  • Browse courses
  • Free Courses

Legal

  • Terms
  • Privacy
  • DMCA
  • DPA
  • Cookies

Company

  • About Us
  • Security
  • Refunds
  • Disclaimer
  • Acceptable Usage
English