Answer:
Human overpopulation is among the most pressing environmental issues ,such as fresh water ,arable land and fossil fuels ,....
Answer:
D) Workers who receive higher pay for specialization will be encouraged to increase productivity for increased wages.
The Emancipation Proclamation was based around the following phrase:
"All persons held as slaves [in the slave-states] are and shall henceforth be free"
This corresponds to the last option - it immediately (and forever) freed all the slaves (in the other slaves, everyone was free already)
Answer:
D. He created the Royal Road
Explanation:
King Darius known as Darius the great was the 3rd kind of the Achaemenid empire. He reigned for a period of 36years. He conquered lands and also improved various economic systems.
Darius improved the persian empire by creating the royal road.
This road gave the Persian officials the ability to reach the cities they conquered all through the empire.