The definition of wind is air in __________, change, motion, direction, Wind is caused by changes in _____________., pressure, mass, volume, density, Air moves from areas of ________ to _________ pressure., low to high, low to low, high to high, high to low, The bigger the pressure difference the _________ the wind., lesser, greater, same, Wind is also controlled by the __________ of the Earth, spinning, magnetic field, ocean currents, waves, ___________ such as trees and buildings can slow wind down., oceans, skyscrapers, friction, forests, What is the independent variable in this question - How does changing the amount of wind affect the amount of material moved?, distance from the wind, type of material, amount of material moved, amount of wind, What is the dependent variable in this question - How does changing the amount of wind affect the amount of material moved?, distance from the wind, type of material, amount of material moved, amount of wind, A good way to reduce or prevent wind erosion is to......, plant rows of trees to hold the soil, dig ditches, plant random trees, ploughing the soil, Wind speed is measured using the __________________ scale., Random, Beaufort, Windy, Richter

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