U1L6 APES

Multiple Choice

Which of the following is NOT a molecule that carbon helps form in living organisms?

• Proteins

• Carbohydrates

• Fats

• Metals

Multiple Choice

What is the main difference between the fast and slow carbon cycles?

• The fast cycle involves living organisms, while the slow cycle involves geological processes.

• The slow cycle is faster than the fast cycle.

• The fast cycle only occurs in the ocean.

• The slow cycle does not involve carbon dioxide.

Multiple Choice

Which of the following is the largest reservoir of Earth's carbon?

• Atmosphere

• Oceanic sediments (Limestone)

• Biosphere

• Fossil fuels

Multiple Choice

What happens to carbon stored in fossil fuels when they are extracted and burned for energy?

• It is released into the atmosphere

• It remains underground

• It turns into water

• It is absorbed by plants

Multiple Choice

Which process enhances the greenhouse effect and contributes to climate change?

• Trapping CO2 in the atmosphere

• Photosynthesis

• Diffusion into oceans

• Respiration