water
all the earths water is called the
Hydrosphere
__________ metals that are able to dent, bend or be shaped
malleable
_____ energy uses steam to turn turbines and produce electricity
Geothermal
a material availble on earth for mans use is called a
natural resource
what are ways the oceans provide for man
water cycle, key part of carbon dioxide oxygen cycle phytoplankton and climate influence.
energy using dams and reservoirs to control the flow of water
Hydroelectric
what is the most abundant metal in earths crust
aluminum
can be replaced by natural means in a short period of time
renewable resource
disadvantage of wind and solar
requires a large area of land
sea ice
floating ice sheets
ice shelf
a solid substance found naturally in the earths surface
mineral
formed with remains of plants and animals are buried quickly
fossil fuel
advantage of geothermal
inexpensive to build and operate
solid form of fossil fuels
coal
a layer of sand gravel and bedrock that holds and moves ground water
aquifer
concentrated area of specific minerals
vein
using fossil fuels can result in what
air pollution oil spills and soot
disavantage of windmills
need a steady wind
liquid form of fossil fuels
crude oil (petroleum)
water returning to the sky through what two methods
transpiration and evaporation
a mineral used to produce nuclear energy
Uranium
water stored under ground
ground water
disadvantage of nuclear energy
radiation can escape and the fused fuel needs special storage to keep it from harming the environment
gas form of fossil fuels