Many natural reefs have been damaged by human activity. However, some marine life has adapted to
using artificial reefs on structures such as sunken
ships. One advantage of artificial reefs for marine
life is that they

What river valley civilization in the plow

Which best describes the“brain trust” franklin roosevelt promised to make part of his administration? a group of america’s most successful businessmen, who would fix the economya group of hoover’s economic advisers, who would undo previous damage to the economya group of smart advisers, who would assist roosevelt in guiding the nation forwarda group of military veterans, who would assist roosevelt in putting americans back to work

How did geographical features create a civilization in china