Why did russia fall behind many european coutries in the 1800s A. too much dependence on agriculture
B. increased focus on gaining land in Asia
C. failures of the communist-run economic system
D. unwillingness to trade with Europe

no , per capita income is not a true measure of the development because: -it only tells us about average income not how income is distributed among the people.it only give us an idea of the economic aspect.it is only at the qualitative basis.moreover, income is not only the way of development other factors are also as much as important as income.

a is the answer because it just is

answer; for children with two myopic parents,the likelihood of becoming myopic is ) correlated with the number of hours spent playing sports each week;