Which zone experiences a surplus of energy?

Which zone experiences a surplus of energy?

• A. Deficit zone
• B. Surplus zone
• C. Neutral zone
• D. No energy transfer

Answer: (B)

The main idea is energy balance by latitude: zones receive solar energy and lose energy back to space, and the balance between input and output determines whether a region has a surplus, a deficit, or a neutral budget. A surplus occurs where incoming solar energy exceeds what the Earth radiates back, so there’s more energy in than out. This is strongest near the equator, where the Sun’s rays hit most directly year-round, giving the tropical zone a net positive energy budget. That excess energy powers vigorous convection, warm surface temperatures, and heavy rainfall, and it must be transported toward the poles by atmospheric and oceanic circulation. In contrast, high-latitude regions receive less solar energy and tend toward a deficit, a neutral zone would have inputs and outputs roughly balanced, and “no energy transfer” isn’t a realistic description of how the global system operates.

The main idea is energy balance by latitude: zones receive solar energy and lose energy back to space, and the balance between input and output determines whether a region has a surplus, a deficit, or a neutral budget. A surplus occurs where incoming solar energy exceeds what the Earth radiates back, so there’s more energy in than out. This is strongest near the equator, where the Sun’s rays hit most directly year-round, giving the tropical zone a net positive energy budget. That excess energy powers vigorous convection, warm surface temperatures, and heavy rainfall, and it must be transported toward the poles by atmospheric and oceanic circulation. In contrast, high-latitude regions receive less solar energy and tend toward a deficit, a neutral zone would have inputs and outputs roughly balanced, and “no energy transfer” isn’t a realistic description of how the global system operates.