This is true - Italy has a aging population which is expected to life long - as is the case with most post-industrial societies, while Niger on the other hand expects its people to live not as long and at the same time has a younger population.
The answer is choice C, the superpowers took a step toward peaceful co-existence.
Answer:
the tobacco plantation system required a multitude of workers in order to farm the extensive plots of land that tobacco was being farmed on. Families could not complete all this work on their own so they resorted to the cheap labor provided by slaves and indentured servants.
Explanation:
The correct answer should be the third one you listed. The "current drag" then is a device that is used in order to measure the sub-surface currents. This device and the measurements it provides are extremely important for the field of oceanography which studies the aspects of the oceans both the physical and the biological ones.
The last one and I'm pretty sure the second one