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Q1. Explain what causes the seasons that we experience in the temperate region of the Northern Hemisphere. Do you have fall and winter in the tropics? Would you have seasons in the Southern Hemisphere?

Q2. Suppose you have three rocks: One is Basalt; one is Calcium Carbonate, and one is quartz. Explain how you might determine which is which: by density, chemical reactions, and hardness tests. Also indicate whether the rock is sedimentary, igneous, or metamorphic.

Q3. Explain why Earth has a higher density, 5.52 g/cm³, than the Earth's Moon by explaining what is meant by density, what the density of the Earth's moon is, and how the elemental composition of Earth and the moon impact their respective density.

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