finals Flashcards
what is ecological footprint?
the amount of biologically productive land and water needed to supply people in particular country with resources and absorb and recycle wastes and pollution produced by such resource use
what is the animal based products?
any material derived from the body of a non-human animal such as milk /fish/eggs/meet
what is the multistory apartment
that is made of break and concrete =our homes
how much is the ecological footprint in
2006
2029
2006: 1.4
2019:1.75
hummanity uses ecological servcies 1.4 times as fast as earth can renew
biological capacity /biocapacity
thr available bilogically **active land and water resources **of a region
avilable to us
what is ecological defict
/reserve
the difference between the biocapacity and ecological footprint of a region
ecological defict
ecological reserve
defict =footprint exceeds biocapacity
reserve=biocapacity exceeds footprint
reserve is what we want which stopped in 1980
28.8
per capita ecological footprint in us
9.7
40 percent of food in us goes uneaten
what is the most lost of the food?
1 fruits and vegetables
2 seafood
3 grain products
4 meat
5 milk
higher to lower wast
what is the twoinnermost layers of the atmosphere?
troposphere-supports life
atratosphhere-contains the protective ozone layer
how the atmosphere pressure decreases?
with altitude ارتفاع
what is troposphere composition?
75-80% of air mass
chemical composition of air
rising and falling weather and climate
involves in chemical cycling
what is the stratosphere composition?
similar to troposphere with 2 exception
1 much less water
2 o3 ozone layer filters uv
and location
what is ozone layer
filters 95% of harmful uv radiation
allows us to exist in land
what is the troposphere tempreture?
13.2
air circulation in lower atmosphere due to :
1 uneven heating of earth surface
2 rotation of earth on its axis
3 properties of air water and land
how does the air heated ?
1 due to its touching to ground
2 greenhouse gases
what is greenhouse gases?
h2o
co2
ch4
n2o
tow type of pollution problems
1 outdoor
2 indoor
11 of the commen air pollution higher inside than outside
what is outdoor pollution ?
pollution in the air to form industrial smog rusulting from burning coal/ photochemical smog caused by moter viacke industrial and power plant emissions
photochemical smog يحدث بسببب احتراق الوقود
air pollution comes from natural and human sources
natural and human sources
-human sources: mostly in urban areas
type of human sources for AIR pollution :
1 stationary sources: power pland andindustrial
2 mobile sources: motor vehicles
type air pollution comes from natural and human sources :
primary pollutants- directly into the air
secondary pollutants- reaction of primary pollutants
acid deposition harful effects:
-human health
-release of toxic metal
-aqutic ecosysems affected low ph kills organism
-leaching of soil nutriens
-lower crop yields
-forest damage
-damage to building and man made structures
