Why is the Sun important to life on Earth?

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Prepare for the Virginia 7th Grade Science SOL Test. Incorporate flashcards and multiple choice questions, each with hints and detailed explanations. Ensure your success on the exam!

Multiple Choice

Why is the Sun important to life on Earth?

Explanation:
Energy from the Sun powers life on Earth by enabling photosynthesis in plants, which uses sunlight to make sugars that become food for almost all organisms. Plants provide the base of the food web, so sunlight supports growth and energy transfer through ecosystems. The Sun also heats land, air, and oceans, driving weather and climate—evaporation, cloud formation, winds, and precipitation—that shape habitats and make Earth a place where living things can thrive. Night and day are just daily cycles from Earth's rotation, not the reason life depends on the Sun.

Energy from the Sun powers life on Earth by enabling photosynthesis in plants, which uses sunlight to make sugars that become food for almost all organisms. Plants provide the base of the food web, so sunlight supports growth and energy transfer through ecosystems. The Sun also heats land, air, and oceans, driving weather and climate—evaporation, cloud formation, winds, and precipitation—that shape habitats and make Earth a place where living things can thrive. Night and day are just daily cycles from Earth's rotation, not the reason life depends on the Sun.

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