How can the practice of tillage be harmful to the overall environment?

Which one is best adapted to live in open water in the epipelagic zone, and why? fish a because of its elongated body and powerful tail fish b because of its flattened shape and eyes on the dorsal side fish c because of its streamlined shape and lack of pectoral fins none of these because they are all sedentary

Read the article titled "trans-saharan migration routes to north africa and the eu: historical roots and current trends." why do tens of thousands of sub-saharan africans try to cross the mediterranean each year? how are these refugees commonly portrayed? (site 1)

Political boundaries are determined by the political party in control at the time. true or false