The correct answer for this question is this one: "d. self-interest / competition." Economists Adam Smith and Thomas Malthus wrote that all players in the market are motivated by self-interest, yet regulated by competition.
Diseases,floods,temperature,food and it could be people too.
This is probably because scientific journals get cross-referenced and peer-reviewed by other mainstream scientific organizations whereas a regular webpage can tell you just about anything without anything to back it up. Their credibility isn't as high.
Answer:
captured during wars
Explanation:
People became slaves in ancient Greece after they were captured in wars. They were then sold to their owners. Other slaves were, by nature, born into slave families.
Answer: The current threat to the United States is Coronavirus, which is the most deadliest biological weapon in the world today. Currently it has killed more than a thousand in the U.S and more than a million in the world, as it still portray threat of killing more, if a proper response is not given to it. The only way the U.S can counter this threat of lossing more of it's citizens to this virus, it to build a separate mass hospital that will be far from the city, where this disease will be combatted. Even as social distancing is very important, and keeping all the rules from the WHO. This separated hospital can be seen as a battle ground, for the U.S and this will help to keep the citizens in the city free. Any body that has contacted the disease will be transferred to the hospital. Hand sanitizers, facemask, and a running tap water should be made available in every street to help protect the people who has not contacted the disease. This will help to reduce the threat from Coronavirus.
Coronavirus is a weapons of mass destruction that has been used as a pandemic across the world. President Donald Trump has urged all U.S citizens to be at alert as the nation is at war with an invisible enemy, which has used a biological weapon to weaken the strength of the country and the strength of the world.
