<h2>Answer:</h2><h3><u><em>Artillery bombardments</em></u></h3><h2>Explanation:</h2><h3><em><u>Artillery bombardments were designed to destroy enemy guns, cut through dense barbed wire and blast men from the trenches.</u></em></h3>
It allowed the transportation of goods to be more efficient and quicker
Answer:
Large-scale Mexican-U.S. migration has changed social, economic, and cultural life on both sides of the border. Migration to the United States can offer increased earnings and savings accumulation (Gathmann 2008).