Question

Write the name of each artifact and the elevation at was found using a positive integer,zero or negative integer

Answer 1

Step-by-step explanation:

arrow head is 15 feet because it is above sea level making it positive

bone 721 feet is also positive because anything positive is above sea level

clay is zero because it is at sea level so it is not positive or negative

necklace 462 is above sea level

woven basket is -1,200 because it is below sea level

Answer 2

arrowhead : 15

bone : 721

clay bowl : 0

necklace : 462

woven basket : -1200

Explanation:

Consider sea level to be zero elevation, then anything above sea level is related to a positive number equal he elevation at which it was found, and anything below sea level would be associated with a negative number (the opposite of the depth at which it was found,as shown below:

arrowhead : 15

bone : 721

clay bowl : 0

necklace : 462

woven basket : -1200