Arrange the following integers -12,+3-102,7=​

Which of the layers of the earth has the following three characteristics? i. it is made of molten rock. ii. it has currents that are constantly moving. iii. earth’s plates float on top of its currents.

One disadvantage that darwin faces today is w. enemy attacks x. natural disasters y. lack of land bridge z. high population density

What is one early technological advance that shaped culture? a the use of fire b the discovery of arable land c family units. d migration