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1,193 fact-checked “why” questions with answers and explanations for every choice. Predict first — then understand why.

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• Streetlit hedgerows can have fewer moth caterpillars. What hidden step may explain it?
• A road still needs light. Which design attacks insect confusion without making roads dark?
• Why are blue-green or white night lights often worse for insects than redder light?
• Moths circling a lamp are not simply aiming at it. What flight reflex gets hijacked?
• Under short autumn days, Aedes albopictus should make hardy eggs. What can artificial night light do?
• Why can night light be bad for mosquitoes yet still bad for people nearby?
• A Culex mosquito entering winter diapause stops seeking blood. What replaces it?
• Streetlights can keep Culex mosquitoes biting into fall. What signal gets scrambled?
• A large igneous province is a vast lava-and-magma episode. Why can it hurt far oceans?
• CO2 and SO2 can both leave big eruptions. Why do their climate effects split?