Multiple choice Directions: Choose the option that spells the word correctly. Arosion Erasion Erosion Erotion Reveal answer Fill a bubble to check yourself C Correct answer Explanation The correct spelling is 'Erosion' with single 'r' and single 's'. It comes from 'erode' + '-ion'. The common mistake 'Erosion' incorrectly doubles the 'r' - remember that 'e-ro-de' keeps the single 'r' pattern.