Carbon Cycle Statements Evaluation

Steps:

• Identify key processes in the carbon cycle: photosynthesis fixes CO2, respiration and decomposition release it, and combustion adds to atmospheric CO2.
• Evaluate statement 1: It correctly describes CO2 uptake by plants via photosynthesis.
• Evaluate statement 2: It incorrectly claims carbon is primarily cycled through oceans only, ignoring terrestrial and atmospheric roles.
• Evaluate statement 3: It wrongly states fossil fuels are not part of the cycle, as they release stored carbon.

Why B is correct:

• Statement 1 aligns with the definition of the carbon cycle, where autotrophs fix inorganic carbon into organic forms through photosynthesis.

Why the others are wrong:

• A includes incorrect statement 2.
• C selects only wrong statement 2.
• D selects only wrong statement 3.

Not enough information on exact statements, but based on standard carbon cycle knowledge, B fits.

Final answer: B