The growing of plants, burning of wood, and decomposition of living matter demonstrate how carbon can be in the at the same time.

a.

atmosphere and biosphere

b.

biosphere and geosphere

c.

geosphere and atmosphere

d.

atmosphere, biosphere, and geosphere

D ^^ it exists in the form of macro-molecules in the plants , so carbon is part of the biosphere. Through the burning of wood, carbon is put out into the atmosphere in the form of CO2  (carbon dioxide). After the decomposition of living matter, carbon can be either released into the atmosphere or stored within the soil as part of geosphere.

D. Atmosphere, Biosphere, and Geosphere.