Ace the Natural Science CLEP 2025 – Unleash Your Inner Scientist!

Plants obtain energy through the process of photosynthesis, in which they use sunlight, water, and carbon dioxide to produce glucose (sugar) and oxygen. Option A is incorrect because plants are autotrophs and do not consume other organisms for energy. Option B is incorrect because respiration is a process that occurs in both plants and animals, but it does not provide energy for plants. Option D is incorrect because fermentation is an anaerobic process that does not produce energy for plants.