Many independent agencies and commissions exist within the executive branch how are the leaders of these groups chosen

The different independent agencies and commissions that exist within the executive branch are chosen through appointment by the president of the United States of America himself. They are chosen by appointment and confirmation to be exact, respectively. Another important would note that aside from this, the president also serves as the Commander-in-Chief of the United States of America. 

Towns and small farms are usually for land, lakes, rivers, and seas.they also produce other food, like crops.it's also where animals are, where we get our meat.large plantations normally have forests, where crops are grown for sale. (similar to farms)plantations have larger fields of crops.our wine, sugar canes, and fruits come from plantations.