carbon cycle-systems and processes

Question 1

a system=

Answer 1

a set of interrelated components working together towards some kind of process

Question 2

most systems share the same characteristics for example:

Answer 2

• they have a structure that lies within the boundary
• they function by having inputs and outputs of material that processed within the component causing it o change in some way

Question 3

systems can be classified by:

Answer 3

• ISOLATED SYSTEMS= they have no interactions with anything outside the system. no inputs or outputs
• OPEN SYSTEM= this is where energy and matter can be transferred from the system across the boundary(most ecosystems)
• CLOSED SYSTEMS= these have transfers of energy both in and out the system but no matter is transferred or can leave or enter

Question 4

dynamic equilibrium=

Answer 4

when there’s a balance between inputs and outputs the system is in dynamic equilibrium

Question 5

feedback=

Answer 5

when an element changes within a system then the stores change so the equilibrium is upset

Question 6

positive feedback=

Answer 6

where the effects of an action are amplified changing the inputs and outputs- the system responds by increasing the effects of the change, moving it further away from its previous state

Question 7

example of positive feedback loops

Answer 7

temps rise-ice covering earth melts-less ice=less of suns energy is reflected-more energy is being absorbed

temps rise-ocean temps rise-dissolved co2 released by warm water-more co2 in atmosphere

Question 8

negative feedback=

Answer 8

where the effects of an action are nullified. its where it counteracts the change in the inputs and outputs so the system responds by decreasing the effects of the change- this keeps it closer to its previous state

Question 9

examples of negative feedback=

Answer 9

large amounts of co2 emitted- co2 in atmosphere increases-co2 causes plants to increase growth-plants remove and store more co2 from atmosphere-amount of co2 in atmosphere reduces