How to Learn Ecosystems, the Water Cycle and Pollution: 122 Flashcards from Silent Spring to Fossil Water
Study the Ecosystems, Water Cycle & Pollution deck (122 flashcards): water cycle processes, key figures, pollution disasters and a 5-day plan to memorize it all.
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Most environmental science courses cover the same three pillars — how ecosystems work, how water moves around the planet, and how humans pollute both — but the exam questions hide in the numbers and dates. Where is 97% of Earth's water? What was banned after Silent Spring? How long does a water molecule stay in the atmosphere? The Ecosystems, Water Cycle & Pollution deck (code IE9145, 122 cards) on Flip It turns exactly those facts into flashcards. Here is how to work through it in a week.
Study this deck: Ecosystems, Water Cycle & Pollution
1 / 10Environmental science
Tap the card for the answer · swipe right if you knew it, left if not
What the deck actually covers
The 122 cards split into three blocks you can study in any order:
- The discipline and its history (cards 1-30): environmental science vs ecology vs environmental studies, Pliny's Naturalis Historia, Linnaeus's Systema Naturae, Rachel Carson and DDT, Garrett Hardin's Tragedy of the Commons, UNEP (1972), Three Mile Island, Bhopal, CFCs and the ozone hole, Exxon Valdez, Deepwater Horizon, NEPA and the Environmental Impact Statement.
- Tools and sub-fields (cards 31-83): remote sensing, GIS, precision agriculture, bioremediation, atmospheric dispersion modeling, nonpoint source pollution, noise and light pollution, soil contamination, sediment transport, water turbidity, ice core sampling, carbon dioxide flux, sustainable development, fossil fuel divestment.
- The water cycle (cards 84-122): evaporation, transpiration, evapotranspiration, condensation, precipitation, infiltration, aquifers, groundwater recharge, residence time, fossil water, water table, sublimation, advection, watersheds, desalination, hyporheic zone, wetlands, atmospheric rivers, IWRM.
Sample cards
| Front | Back |
|---|---|
| Where is most of Earth's water stored? | Oceans — 97% (1.338 billion km³ of 1.386 billion km³) |
| What percentage of Earth's water is fresh water? | Only 3%, and about 68.7% of that is frozen in glaciers and ice caps |
| Residence time of water in the atmosphere | About 9 days before it condenses and falls as precipitation |
| How much precipitation falls globally per year? | ≈ 505,000 km³ (78% over oceans, 22% over land) |
| Main human uses of water | Agriculture ~70%, industry ~20%, household ~10% |
| Fossil water | Groundwater stored underground for more than 10,000 years |
| Bhopal disaster | 1984 release of toxic methyl isocyanate gas in Bhopal, India |
| Bioremediation | Treating wastewater with developed strains of bacteria — cheaper and more eco-friendly than chemical methods |
| Effect of urbanization on water cycle | More runoff, less infiltration (pavement), altered local rainfall, reduced evapotranspiration |
| Sublimation | Ice or snow turning directly into water vapor without melting |
A 5-day plan that respects the deck's structure
- Day 1 — the seven water-cycle processes. Evaporation, condensation, precipitation, infiltration, runoff, transpiration, sublimation. Draw the loop once on paper, then flip cards 84-104 until every arrow has a name.
- Day 2 — the numbers. 97/3/68.7, 86% of evaporation over oceans, 505,000 km³, 9 days vs 3,200 years of residence time, 70/20/10 water use, 95 million m³ of desalinated water per day. These are the cards that get missed; review them twice.
- Day 3 — the disaster timeline. Order them chronologically: Silent Spring 1962 → Hardin 1968 → NEPA 1969 → UNEP 1972 → Three Mile Island 1979 → Bhopal 1984 → Exxon Valdez 1989 → Deepwater Horizon 2010. Chronology makes eight isolated cards into one story.
- Day 4 — humans vs the cycle. Deforestation, urbanization, dams, groundwater depletion, water cycle intensification (wet gets wetter, dry gets drier). Each card pairs a cause with a mechanism.
- Day 5 — technology cards. Remote sensing, GIS, thermal imaging against poachers, AI for animal movement, blockchain for fisheries. Learn them as problem → tool pairs.
Two tips that make this deck easier
Tie every pollution card to a sub-field. The deck repeatedly asks which discipline studies what: soil contamination and water pollution → environmental chemistry; surface runoff and erosion → environmental soil science; sediment transport → fluvial geomorphology; turbidity → biology; infrared transmission → physics. Answer the "who studies it" question and the definition follows.
Learn residence time as a ladder. Nine days in the atmosphere, thousands of years in deep aquifers, more than 10,000 for fossil water. Once you hold that scale, the groundwater-depletion cards (extracting faster than recharge) explain themselves.
Search for deck IE9145 in the Flip It library, and if you want the rock-and-mineral side of Earth science, pair it with our geology study guide.
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