Water Cycle and Earth's Water Distribution

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Questions and Answers

Match the percentage of Earth's water with its type:

97% = Salt water 2% = Frozen fresh water 1% = Available fresh water 0% = Water unavailable for use

Match the terms of the water cycle with their definitions:

Evaporation = Liquid to gas Condensation = Gas to liquid Precipitation = Water falling to Earth Run-off = Water flowing across the surface

Match the components of Earth with their definitions:

Lithosphere = Solid rock of Earth's crust Atmosphere = Environment surrounding the planet Hydrosphere = All the water on Earth Biosphere = All living organisms

Match the differences between ocean water and fresh water:

Salinity = About 35 g/L in ocean Density = About 1.027 g/L in ocean Freezing Point = -1.9ºC in ocean Oxygen Content = Variable in both waters Signup and view all the answers

Match the factors affecting marine life with their characteristics:

Temperature = Range of tolerance Dissolved Oxygen = Should be around 5 mg/L or more Phosphates = Less than 10 micrograms/L Turbidity = Cloudiness of the water Signup and view all the answers

Match the water cycle stages with their examples:

Evaporation = Water turning into vapor Condensation = Formation of clouds Precipitation = Rain or snow Run-off = Water flowing into rivers Signup and view all the answers

Match the conditions that are harmful to aquatic life:

Increased Acidity = Beyond 8.5 Too many Phosphates = Leads to overgrowth of plants High Pollution = Bad for organisms High Turbidity = Cloudiness from pollutants Signup and view all the answers

Match the examples of freshwater resources with their characteristics:

Glaciers = Store frozen fresh water Polar Ice Caps = Contain frozen water Icebergs = Floating blocks of ice Wells = Source of groundwater Signup and view all the answers

Match the following sources of fresh water with their descriptions:

Lakes = Bodies of freshwater surrounded by land Ground Water = Water that has seeped into soil and resides in pores Glaciers = Moving walls of ice and snow Drainage Basins = Areas of land that drain into a body of water Signup and view all the answers

Match the following terms related to glaciers with their definitions:

Iceberg = A chunk of ice that has broken off a glacier Ice Ages = Periods of major cooling where land is covered in glaciers Receding Glaciers = Glaciers that are melting or shrinking Glacial Pressure = Weight causing snow to turn into ice Signup and view all the answers

Match the following processes with their effects on marine life:

Upwelling = Brings nutrient-rich water to the surface Photosynthesis = Supports plant life in nutrient-rich areas Nutrient Cycle = Facilitates animal life attraction to plant-rich waters Carbon Sequestration = Reduction of CO2 in ocean due to plant uptake Signup and view all the answers

Match the following components of the fresh water cycle with their characteristics:

Wetlands = Areas where water covers the soil Streams = Flowing bodies of freshwater Ponds = Small bodies of stagnant water Rivers = Larger flowing species of freshwater Signup and view all the answers

Match the following terms with their associated concepts:

Aquifer = Underground layer of water-bearing rock Watershed = Land area draining into a river Bedrock = Solid rock layer beneath soil Pores = Small openings in soil allowing water to pass through Signup and view all the answers

Match the following effects of global warming with their outcomes:

Rising Temperatures = Increased melting of glaciers Melting Glaciers = Rise in sea levels Flooding = Impact on communities near coastlines Climate Change = Long-term alteration of climate patterns Signup and view all the answers

Match the following types of water bodies with their environmental roles:

Ponds = Habitat for various wildlife Lakes = Storage of freshwater Wetlands = Natural water filtration system Rivers = Migration paths for fish species Signup and view all the answers

Match the following features of upwelling with their significance:

Nutrient Richness = Supports diverse marine ecosystems Vertical Motion = Brings cold water from depths to surface Ecological Impact = Promotes higher productivity in ocean Food Web Foundation = Supports both plant and animal life Signup and view all the answers

Flashcards

Salinity

The amount of dissolved salt in a specific volume of water. Ocean water has a high salinity (around 35g/L), while freshwater has almost no salt (around 0g/L).

Density of water

The amount of mass of a substance in a certain unit of volume. Ocean water is denser than freshwater because of the dissolved salts.

Freezing Point of water

The temperature at which a liquid freezes. Ocean water freezes at a slightly lower temperature than freshwater due to the dissolved salts.

Run-off

Water that flows across Earth's surface. It occurs when water cannot soak into the ground or evaporate.