What are the 2 main causes today causing concern over the destruction or eroding of the great wall?

What determines the properties of a mineral

Match each radical republican goal with the action taken to achieve it. a passage of laws that required the leader of the us army to approve orders to the military commanders of the southern districts b division of southern states into five military districts c requirement that states guarantee citizenship to anyone born in the united states 1 goals actions to punish former confederate states 2 to limit the role of the president in reconstruction 3to ensure equal treatment for blacks and whites

What new concept did the the american revolution introduce into the world