last
difference between atom and element
element is a specific type of atom
difference between high and low quality energy
why is there less energy at top of food chain
less energy as it travels up food chain
how is it that you could be made of same carbon atoms as dinosaurs
food chain and carbon cycle
how to plants get carbon
soil and photosynthesis
why do we need nitrogen fixation
we cant breath nitrogen from air
why does water have surface tension
water is polar
one product of photosynthesis
oxygen
what organism fixes nitrogen
bacteria
firs law of thermodynamics
nothing is created or destroyed, only changed
how are photosynthesis and respiration related
they are each others opposite
why do we need nitrogen
its part of proteins and DNA
why cant we get heat from ocean
energy as heat is despersed by water, and energy would continue to be lost transfering it to another form (second law of thermodynamics)
why is energy lost as it goes up food chain
lost as heat in conversion process
most common form of carbon
CO2