The project D. Building the Transcontinental I believe is the one that led to the creation of a system of time zones across America
Answer:
It has increased rapidly
Explanation:
In 1950 there were around <u>2.5 billion</u> people living in the world, while today that number is <u>7.5 billions.</u>
In most of the developed countries the population has grown rapidly, of course among the other things because health system in those countries has developed and is still developing pretty fast.
For example United States had 150 million inhabitants and now that number has doubled - more 320 millions.
Answer:
The main reasons for the collapse of the Roman Empire was foreign invaders, decrease in trade, corrupt government, internal revolts, and collapse of the economy.
Explanation:
- Roman Empire was weakened by different reasons that it finally collapsed.
- The main reasons being overreach of the military, invasion by determined Huns and Visigoths tribes from Central and Northern Europe, inflation (economic decline), corruption in the government and other political reasons.
- All these factors were linked to each other. Military decline meant less of the people had jobs in military.
- It resulted in less people wanting to have children. Also, people were suffering from the plague that killed millions in Europe.
So it has to be 20 characters long but it’s D
