Which system do you think Earth is? A. Open: matter and energy can flow in & out

B. Closed: energy can flow in and out but not matter
PLZZZ FAST AND THIS IS SCIENCE

Which statement best describes the underground railroad? a.) it is a train that took slaves from the south to the north. b.) it is a business that harriet tubman founded to slaves become free. c.) it is a secret route that slaves took to escape from southern slave states to the north. d.) it is a road that slave owners disliked using for travel.

Anthony johnson, an african who arrived in virginia in 1621, a. learned the powhatan language and became a translator for governor thomas dale. b. owned slaves. c. translated the king james version of the holy bible into indian and african dialects. d. was the first slave who purchased his freedom with earnings from growing tobacco.

John locke believed there was a social contract between a govemment and its people. what were the details of this contract?