🔍 Key Concepts

• Solar radiation and how sunlight reaches different parts of the Earth • How Earth’s tilt, rotation, and surface features affect temperature • Difference between local effects (like mountains, water) and global effects (like seasons)

💭 Think About

• Ask yourself: which options describe factors that can change how much solar energy a specific place receives over time? • Think about whether each choice (time of day, geography, seasons) can independently cause different heating in different locations. • Consider if the question is about one single main cause, or whether several listed factors all contribute to irregular heating.

✅ Before You Answer

• For each option, check: does this change the angle or duration of sunlight at a location? • Verify which factors operate on daily, seasonal, and permanent (fixed geography) time scales. • Make sure you’re not overlooking that multiple mechanisms can contribute to the same overall effect.