Answer:
The economy of Iran is a mixed and transition economy with a large public sector. Transition economies are involved in a process of moving from a centrally planned economy to a mixed or free market economy.
The invention and creation of the telegraph made a faster and cheaper method to send information across the nation, The Pony Express ended because of an advance in technology.
Realism followed the Civil War. The correct option among all the options given in the question is the second option. Realism actually followed the Civil War that took place in the year 1865 in the United states of America. Realism actually began in France after the Revolution of 1848. Later on it became very wide spread.
On beaches. beaches have sand and other rocks that make up conglomerate :).
