Answer:
The 12 survivors are people who are married (6 couples), the word "single" is the keyword denoting those only people who are single had died.
Demography with the first one
Carrying capacity is the third one
Population density is the last one
Census is the second one
Answer:
nato is worried that russia will blow up something in poland so then they can get involved in world war 3
Explanation:
The slave trade ended in 1807.
<span>The country is using all its resources efficiently.
</span>--- Pairs shifts PPC to the right arrow<span>
A new technology is invented to produce more food grains in the country.
--- </span>Both point on the original PPC arrow<span>
The country plans to produce goods that are not possible to produce with the available resources.
--- </span>Both unattainable point<span>
Many of the country’s young people died in an earthquake.
--- </span>Both shifts PPC to the left arrow<span>
</span>
