The World's Water Supply Is Contained In A Closed System - The Hydrological Cycle
Muhtasari
Water is constantly moving between the oceans, atmosphere, land and ice in a vast recycling system that has no beginning or end. This continuous movement, the hydrological cycle, drives the rivers, shapes the valleys and sustains every ecosystem on Earth.
In this lesson you will trace water through its stores and transfers, explore how drainage basins collect and channel precipitation, and learn to read storm hydrographs, a skill that Edexcel tests regularly on Papers 1 and 2.
Malengo
- The hydrological cycle: characteristics, stores and transfers
- Features of a drainage basin: source, watershed, channel network, mouth
- Factors affecting river regimes: precipitation, including storm hydrographs, temperature, vegetation, land use, water abstraction, dams
Maelezo ya Somo
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Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- The hydrological cycle is best described as: A) An open system with external inputs and outputs B) A closed system where water is continuously recycled C) A system that produces new water through volcanic activity D) A linear process from oceans to rivers Answer: B
- Which store holds the largest proportion of Earth's water? A) Ice caps and glaciers B) Groundwater C) Oceans D) Rivers and lakes Answer: C
- What is the transfer called when water moves from the soil into the underlying rock? A) Infiltration B) Throughflow C) Percolation D) Surface runoff Answer: C
- On a storm hydrograph, lag time is measured between: A) The start of rainfall and the end of rainfall B) Peak rainfall and peak discharge C) Base flow and peak discharge D) The rising limb and the falling limb Answer: B
- Which factor is most likely to produce a short lag time and a high peak discharge? A) Dense woodland on permeable sandstone B) Gentle slopes with thick soil C) Urbanised catchment on impermeable clay D) Flat marshland with deep peat Answer: C
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Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
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