Final answer:
Carbon sources such as grass, carrots, soil, trees, cows, steak, and humans participate in the carbon cycle. Human activities can impact the carbon supply in a food chain.
Step-by-step explanation:
Carbon is stored in various sources and cycles through ecosystems in a process known as the carbon cycle.
There are several carbon sources mentioned in the question, including grass, carrots, soil, trees, cows, steak, and humans. Let's create a simple food chain to show how carbon enters and exits each organism:
- Grass: Grass absorbs carbon dioxide from the atmosphere through photosynthesis, converting it into organic carbon compounds.
- Cows: Cows eat grass, ingesting the carbon compounds.
- Humans: Humans consume and digest cows in the form of steak, releasing carbon dioxide as a byproduct of cellular respiration.
As for the impact of human activity on the carbon supply in this food chain, the burning of fossil fuels like coal, oil, and gas releases large amounts of carbon dioxide into the atmosphere. This can contribute to climate change and disrupt the balance of carbon in the ecosystem.