The following diagram represents processes and products in the carbon cycle. In this diagram of the carbon cycle, Location A is the process by which carbon in the atmosphere is converted by green plants into food.

© 2011 FLVS

What process is occurring at Location A?

Combustion
Photosynthesis
Respiration
Weathering

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

carbon traps heat so more of it makes it hotter causing global warming. during the ice age carbon levels in the atmosphere were low so it got very cold. so the common things between them is carbon levels in the atmosphere.