8. Ang sistema ng pakikipagkalakalan na ginamit ng ating mga ninuno na kung saan ang mga produkto ay ipinapalit sa ibang produkto na dala ng
ibang lahi.
A. Kaingin
B. Barter
C. Pagmimina
D. Pangangayaw
answer me please
correct answers only

the right answer is the end of world war ii

after the end of a global wwii all the nations involved, in an attempt to create an organization to maintain world peace. this agreement would work settling international disputes via negotiation and arbitration instead of leading the issues escalate to another war.

john maynard keynes developed new economic theories in response to the : b) great depression of the 1930s. his theories are so important that they are known as "keynesianism". in his works he supports the idea of a government with deeper involvement and intervention to end the great depression.