Carbon Cycle Gizmo_ Activity C
1. Observe: The MODEL tab shows a simplified model of the carbon cycle. The ovals represent carbon reservoirs, where carbon is stored. The unit “GtC” stands for gigatonnes of carbon, where one GtC is equal to one trillion kilograms of carbon. The arrows represent how much carbon moves from one reservoir to another each year, in gigatonnes per year 2. Calculate: Carbon dioxide is a greenhouse gas that helps to trap heat in Earth’s atmosphere. We need some CO2 in the atmosphere to maintain a warm planet, but excess carbon can cause considerable warming of the planet. 3. Experiment: Using the Gizmo model, explore the following questions: 4. Infer: Click Reset and Return to original settings. Suppose we completely stopped burning fossil fuels immediately. How many years would it take to return to atmospheric CO2 levels from the year 1800, about 600 GtC? Use the Gizmo to find the answer.
Información del documento
- Subido en
- 12 de noviembre de 2022
- Número de páginas
- 2
- Escrito en
- 2022/2023
- Tipo
- Examen
- Contiene
- Preguntas y respuestas
