In 2003, what percentage of soybean

crops in the United States were genetically

engineered to be herbicide resistant?

Its either a) or b),wind and water erosion gradually widen the canyon

The speed of  sound:   sound travels  at different speeds depending on what it istraveling through. of the three mediums (gas, liquid, and solid)  sound waves travel the slowest through  gases, faster  through  liquids, and fastest  through  solids.