ert say Flashcards
is an organic transparent tasteless odorless and nearly colorless chemical substance
water
3% percent water is
freshwater
97% percent water is
salt water
2.06% percent water is
ice
0.9% percent water is
groundwater
0.008% percent water is
lakes
0.001% percent water is
wetlands
0.0002% percent water is
rivers
gets polluted when contaminants such as fertilizers and septic systems making their way into an aquifer
groundwater
major pollution in the surface water sources due to farm waste and fertilizer runoff
surface water pollution
streams and rivers carry contaminants such as chemical nutrients and heavy metals that are carried from farms
ocean water pollution
is contamination derived from multiple or diffused sources.
These may include contaminated water traveled after rains
non point source
happens when contaminated water from one country spilled into other countries waters
transboundary
causes of water pollution
industrial waste,
sewage and wastewater,
mining activities,
marine dumping
accidental oil leakage
chemical fertilizers and pesticides
leakage from sewer lines
global warming
radioactive waste
urban development
the raw sewage needs to be adequately treated in a water treatment plant before it is released into the environment
industrial treatment
when nitrates present in the water get converted into gas
denitrification
treatment method has become very popular in this method an ozone generator breaks down the pollutants in water
ozone waste water treatment
treat sewage right at the place of the location where it originates instead of treating it in any far away plant or sewage system
septic tanks
is a natural body composed of a mixture of organic and inorganic materials that is formed from the disintegration
soil
biggest rock particles
sand
particles of rock smaller than those of sand
silt
smallest rock particles
clay
mixture of all types of rock particles and humus
loam
is the remains of living material and becomes a part of the soil which makes it very feritle
humus
soil is composed of
oxygen, carbon dioxide, nitrogen, hydrogen
the decline in soil quality which comes due to aspects such as improper land use agriculture, and pasture urban or industrial purposes
soil degradation
cause the loss of plant cover making the soil susceptible to erosion
overgrazing
plastic bottles when they breakdown they release Diethylhydroxylamine(DEHA) a carcinogen that affects our reproduction system causes liver dysfunction and weight loss
soil contamination
a deep focus with depth of disturbance around 300km to 800km
plutonic earthquake
are produced by sudden movement along faults and plate boundaries
tectonic earthquakes
the study of earthquakes and seismic waves that move through and around the earth
seismology
are the waves of energy caused by the sudden breaking of rock within the earth or an explosion
seismic waves
traveling through the interior of the earth, arrive before the surface waves emitted by an earthquake
body waves
the first kind of body wave is the
P waves or primary wave
the second type of body wave is the
S waves or secondary waves
travelling only through the crust, surface waves are a lower frequency than body waves
surface waves
types of fault
normal fault
reverse fault
strike slip
oblique fault
where the crust is being pulled apart, occurs in which the overlying block moves down with respect to the lower block
normal fault
where the crust is being compressed, occurs in which the hanging wall block moves up and over the footwall block
reverse fault
crustal blocks may also move sideways past each other usually along nearly vertical faults
strike slip
involves various combinations of these basic movements which include both reverse and dextral movement
oblique fault
is an application capable to do proximity searches to active faults
philvolcs fault finder
signs of impending earthquakes
animal behavior
change in atmospheric conditions
electromagnetic disturbances
boom sound
earthquake hazards
ground shaking
tsunami
landslides and rock falls
ground displacement
liquefaction
fire
sinkholes
