QUESTION 1 - What mineral was used to make sharp tools?
QUESTION 2 -Where we minerals found?

first one is the correct answer

its first and third is your answer i did the qustion the fourth isnt right

answer; 4 electrons;

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.