The effect of the Crimean war was to (A) allow Russia to retain control of Moldavia and Walachia
(B) plunge the Estonian economy into a long period of decline
(C) strengthen the Concert of Europe with the addition of France
(D) destroy the Concert of Europe and leave Russia without allies

Correct answer is (D) destroy the Concert of Europe and leave Russia without allies .

Explanation:

Option A is not correct as this two principalities were unified just a couple of years later into Romania.

Option B is not correct as this war didn't affected Estonia.

C is not correct as quite on the contrary this was one of the crisis that undermined the Concert of France.

D is correct as European forces, especially Austria, Britain and France were afraid that Russian influence and conquering of Constantinople would totally change the balance of powers.

the industrial revolution pushed the world into modern industrialization. it changed the course of history profoundly. it caused rapid urbanization and pushed cities and countries into development. the industrial revolution began in great britain with a series with new inventions which led to the creation of machines and mass production.

this caused the country to gain wealth and money and become an international superpower. it improved transportation and manufacturing inside the country, pushed people to live in urban areas and britain to become the most powerful nation in the world for a while.

the correct option is: a liberal.

the kind of person that is most likely to hold a left-wing political ideology is liberal because they have in common that they support human individual rights and liberties. also, they both have politically and economically centrist.

moreover, a liberal believes that everyone should have equal rights as well as opportunities to succeed in life, and the freedom to make their own decisions as long as they don't attack the rights of other people. all people deserve the same opportunities and basic needs.