Questions and Answers
Freshwater is found in glaciers, rivers, lakes, soil, and ______.
groundwater
Saltwater is primarily found in the ______.
oceans
The hydrologic cycle ensures that water is naturally ______ on Earth.
replenished
Floods are an overflow of water onto what is normally ______ land.
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Droughts are a long period of little to no ______ in a specific area.
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Excess fertilizers from farms can lead to rapid ______ growth in water bodies.
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Resource management can be viewed from a human-centered or ______-centered perspective.
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To reduce our impact, we can ______, reuse, recycle, recover, and refuse.
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Study Notes
Water Sources
- Water is unevenly distributed across the globe, with varying sources and movement between them.
- Freshwater is crucial for direct human use, found in glaciers, rivers, lakes, soil, and groundwater.
- Saltwater constitutes the majority of Earth's water, primarily located in the oceans, with the Pacific Ocean being the largest body of water.
States of Matter
- Solid water freezes at low temperatures, taking a fixed shape.
- Liquid water flows freely, having a definite volume but no fixed shape.
- Water exists in gas form as steam and boils at higher temperatures.
Resource Management
- Humans extract materials from nature based on a human-centered perspective, which emphasizes utility.
- A nature-centered view values nature for its inherent worth beyond human use.
Sustainable Use of Resources
- Sustainable resource management is essential to ensure availability for future generations.
- Reuse: Minimizing new resource consumption by reusing items.
- Reduce: Lowering resource use, like decreasing water usage during showers.
- Recycle: Converting used materials, such as plastic bottles, into new products.
- Recover: Cleaning and restoring waste for future use.
- Refuse: Avoiding non-reusable or non-recyclable materials and products.
Sustainable Management of Water
- The hydrologic cycle involves processes that continuously replenish water on Earth.
River Ecosystems
- River ecosystems rely on water for survival and maintain complex food chains that illustrate energy transfer among organisms.
River Pollution
- Pollution is caused by harmful substances entering water bodies.
- Leaks from landfills and the dumping of waste are significant contributors to river pollution.
Excess Fertilizers
- Runoff from farms can carry excess fertilizers into water bodies, leading to alarming algae growth, disrupting aquatic ecosystems.
Floods
- Floods occur when water overflows onto normally dry land, often due to heavy rainfall or dam breaches.
Droughts
- Droughts are characterized by prolonged periods of minimal to no rainfall in a specific region, severely affecting water availability.
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Description
Explore the various types of water sources on Earth, including freshwater and saltwater. Understand the states of matter as they relate to water in solid, liquid, and gas forms. This quiz will also touch on resource management related to water usage.
