In 1948, Swiss engineer/amateur mountaineer George de Mestral went hiking in the woods with his dog. When they arrived back home, George found burrs stuck to his dog’s fur. This inspired him to create velcro.
The correct answer is - Nigeria.
Nigeria is the most populated country from the countries on the list, in fact, it is the most populated country in all of Africa. Nigeria has an estimated population of 173 million people, Senegal little more than 14 million, Guinea has little more than 10.6 million, and Liberia little less than 3.5 million people.
Nigeria has almost twice bigger population than the second placed Ethiopia in the African continent. The population of this country is predominantly young, the birth rates are relatively high, and the life expectancy is constantly on the rise. It is expected that the trend of increase in the population of Nigeria will continue for the foreseeable future, just as the population of the African continent as a whole.
Depends on what you mean slavery -(freedom) was the act of African Americans fighting for their will rights and "freedom"
And freedom as a nation is the ability to do as you please (to a limit) and not have to worry about anything like slavery, not soon anyways.
Answer:
Most liquid fuels in widespread use are derived from fossil fuels; however, there are several types, such as hydrogen fuel (for automotive uses), ethanol, and biodiesel, which are also categorized as a liquid fuel. Many liquid fuels play a primary role in transportation and the economy.
A, all the other answers would not make sense in the question.