Carbon. we are carbon-based life forms. carbon cycles between earth's spheres. when viewing the earth as a system, the
atmosphere, lithosphere, hydrosphere and the biosphere are referred to as carbon pools or reservoirs because they act as
storage houses for large amounts of carbon. any movement of carbon between these reservoirs is called a flux. in any
integrated system, fluxes connect reservoirs together to create cycles and feedbacks.
compare the two models seen here. both illustrate carbon's movement or fluxes. model i provides an important detail missing
from model ii.
a)
modell provides quantitative data.
b)
model il does not show the direction of the flux.
c)
model i distinguishes between natural and anthropogenic flux.
d)
model l includes both photosynthesis and cellular respiration.

the answer is c bc i got it wrong on usatestprep bc i picked d and it was c

Explanation:

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !