why is water conducive to origin and maintenance of life - Answer--universal solvent
-polar
-high specific heat
- large latent heat (heat transport thru phase changes)
-strong cohesion and adhesion
how was the chemical nature of water discovered - Answer-Lavosier ran an electric current thro...
BESC 320 exam questions and answers
why is water conducive to origin and maintenance of life - Answer--universal solvent
-polar
-high specific heat
- large latent heat (heat transport thru phase changes)
-strong cohesion and adhesion
how was the chemical nature of water discovered - Answer-Lavosier ran an electric
current through water which resulted in hydrolysis (oxygen + hydrogen) revealing its
polarity.
what does water's ability to dissolve most compounds or elements make it - Answer-
storage compartment, transfer medium, chemical mediator
major reserves of water and their percentages - Answer-97% saltwater (oceans)
3% fresh water (70% is ice, 29% is groundwater, 1% surface water)
0.0075 available for human use
components of hydrologic cycle - Answer--evaporation: transpires from land, water or
organisms
- condensation: dew/ cloud formation only of there is a molecule, like cloud
condensation nuclei, to adhere to
-precipitation: rain, snow
- storage: water bodies, glaciers, flood plains
-infiltration: movement into soil
-percolation: deeper movement into soil to zone of saturation
-runoff: surface movement into rivers
-water table: river ousbes water into landscape or landscape pushes into river,
sustaining river flow
how does water contribute to nutrient cycling like nitrogen and phosphorus - Answer-
dissolves nitrates and phosphates moving the nutrients around
how does the sun move water in the atmosphere - Answer-heat energy helps phase
changes
air currents warmed by the sun and make currents warmer
hurricanes gain more energy when moving over warm water
El nino - Answer-warm equatorial waters distributed by currents through the Pacific and
causes rain
what factors determine climate patterns - Answer--convection currents create latitudinal
banding. -Rising warm moist air creates high pressure and precipitates around
upwelling areas
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