Question

use the diagram to help you answer the question.
burning fossil fuels
volcanic activity
ocean loss
respiration
deforestation
ocean uptake
photosynthesis
which of the following are human activities that release carbon? select all that apply.
burning fossil fuels
deforestation
volcanic activity
photosynthesis

Explanation:

Step1: Analyze each activity

• Burning fossil fuels: Human activity (burning coal, oil, gas) releases carbon (as \(CO_2\)). Correct.
• Deforestation: Humans cut trees, reducing \(CO_2\) uptake and releasing carbon (e.g., from decaying biomass). Correct.
• Volcanic activity: Natural (not human) process. Incorrect.
• Photosynthesis: Plants absorb \(CO_2\) (remove carbon), not release. Incorrect.

Step2: Identify human activities

From analysis, burning fossil fuels and deforestation are human activities releasing carbon. Volcanic activity (natural) and photosynthesis (carbon uptake) are incorrect.

Answer:

burning fossil fuels, deforestation