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Astro-Earth
NATURAL RESOURCES
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Cards (29)
petroleum
(oil) - composed of hydrocarbons
petroleum
- highly flammable liquid
natural gas
- flammable gas mixture conisisting of
methane
it is the cleanest fossil fuel
natural gas
geothermal energy
- natural heat of earth
geothermal gradient
- rate at which temperature increases with depth
magma
- molten rock underneath the suface of earth
minerals
- naturally occurring inorganic solid substances that are composed of
ions
and molecules bonded together
crystalline
- ions and molecules of a mineral arranged in a regular network
rocks
- naturally formed aggregates of minerals
enumerate 3 types of rocks
igneous
- formed from the
solidification
of lava
metamorphic
- form from
preexisting
rocks
sedimentary
- form from fragments of
older
rocks o
ions
dissolved in water
earth materials
- naturally occurring resources found on earth
soil
- when rock fragments created by weathering are altered by biological processes
erosion
- transport of soil and sediments
weathering
- breakdown of rocks into smaller pieces due to physical, chemical or biological agents
deposition
- particles fall out of the transporting medium and settle on a surface
water pollutants
- disease-causing microorganisms
oligotrophic
- freshwater environments that are clear but have low biological productivity
eutrophic
- nutrient-rich waters
algal blooms
- influx of
nutrients
together with an increase in temperature and more sunlight penetrating the water
dinoflagellates
- blooms of microscopic algae
minamata
disease
- mercury poisoning from eating fish contaminated with mercury
sedimentation
- water carries sedinemnts to rivers and other bodies of water
siltation
- increased concentration of sediments on the bottom of bodies of water
thermal pollution
- sudden increase or decrease in water temperature
blast fishing
- uses dynamite and results in killing of fish
coral reefs
- nursing ground for fishes
janitor
fish
- originally imported by fish hobbyists, now found in many aquariums
ways to contaminate oil
oil may be
pumped
into another
ship
dispersants
applied to oil
slick
burn the oil