If each balloon is 9 feet long, the conversion to yards would be exactly 3. Multiplying 3 yards of string by the amount of balloons will get you how much she needs, in this case, she would need 150 yards of string.
Tectonic Plates<span>, Earthquakes, and </span>Volcanoes<span>. According to the theory of </span>plate tectonics, Earth is an active planet. Its surface is composed of many individualplates<span> that move and interact, constantly changing and reshaping Earth's outer layer.</span>Volcanoes<span> and earthquakes both result from the </span>movement<span> of </span>tectonic plates<span>.</span>
Wind currents, glaciers, streams, landslides, floods, freeze-thaw and oxidation
