Global Systems 2 Flashcards
is earth an open or closed system
closed for matter open for energy
ozone layer does what
protects from UV rays
What is the reaction of cellular respiration
o2 and glucose go in and co2 and water are produced
reaction of photosynthesis
co2 and water go in produce oxygen and glucose
what happens when water freezes in terms of energy
molecules slow down (exothermic)
how do the melting point and freezing points of a substance compare
both 0 degrees
which process in the water cycle requires the most energy
evaporation
what is the scientific name for the water cycle
hydrological
what kind of system is the human body
open (energy not isolated)
the amount of energy the earth uses and loses is known as
the net radiation budget
the amount of heat required to convert one kilogram of ice into liquid water is
6.01kJ/mol
the amount of heat needed to raise the temp of one kg of a substance one degree
c (heat capacity)
same amount of ice, water, steam, and iron. You want to increase the temp the same amount. Which will require the most energy?
water (high heat capacity)
the land is the biosphere is known as
lithosphere
the layer of gases around the earth is known as the
atmosphere
the part of the earth that maintains and supports life
biosphere
how does hot air rise
the density (convection)
layers of the atmosphhere
troposphere (weather occurs)
stratosphere
mesosphere
thermosphere
what evidence is there of climate change
ice cores
temperature increases
change in growing season
suppose the trees in a region are cut down exposing dark soil. How will affect the albedo
it won’t reflect as much because it is absorbing
elbedo
the ability of a surface to reflect light
why do currents rotate clockwise in the northern hemisphere
the choreolus effct
choreolus effect
the equator gets more heat now that hot air rises and goes towards the poles where there is colder air and the colder air goes back down to the equator but because the earth is rotating the air moves (combination of convection currents and the earth’s rotating)
what are the top greenhouse gases
methane
carbon dioxide
water vapour
when is a lake warmer - spring or fall? why?
fall because of high heat capacity (because water has a higher heat capacity, it takes longer to warm up and cool down)
which will give you a more severe burn, liquid water or water vapour at 100 degrees and why
steam because it has more potential energy because you had to use energy to make it steam
which biome has the largest annual precipitation
rainforest
which biome is most important to the agricultural industry
grassland
what was the Montreal protocol for
to stop the hole in the ozone (ban worst CFCs)
ozone hole caused by
CFCs
what was the purpose of the Kyoto Protocol
to reduce greenhouse gas emissions
why are temperatures in Ireland fairly constant throughout the year
the ocean
