In physics, a state of matter is one of the distinct forms in which matter can exist. Four states of matter are observable in everyday life: solid, liquid, gas, and plasma. Matter in the liquid state maintains a fixed volume, but has a variable shape that adapts to fit its container.
I think what is meant here is the fact that the borders of African countries are unusually straight and do not follow natural landscapes (see the borders between Namibia and Botswana) - this is a legacy of how the land was shared by the colonial powers.
We know that terrorists are seeking nuclear weapons. Today, there are more than 1,800 metric tons of weapons-usable nuclear materials-highly enriched uranium<span> and plutonium—stored in hundreds of sites across 25 countries, some of them poorly secured. To build a bomb, terrorists won't necessarily look to the biggest stockpiles; they'll go where nuclear materials are the most vulnerable. That makes global nuclear security only as strong as the weakest link in the chain.
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Answer:
A. Southerners refused to be a part of a country in which the president personally opposed slavery
Explanation:
Answer: A) Shrinking by about 750,000 per year
Explanation: The population of Russia is Shrinking by about 750,000 per year. This is because of Low birth rates and abnormally high death rates. The overall life expectancy in Russia at birth is 72.4 years (66.9 years for males and 77.6 years for females).
