identify two different challenges faced by early inhabitants of Louisiana and explain how each challenge had to be overcome in order for these groups to survive.

The correct answer to this open question is the following.

Two challenges faced by early inhabitants of Louisiana were the heavy rains due to the weather conditions in the zone of the Gulf of México, and the constant flooding of the Mississippi River or the Ouachita River in Northern Louisiana, which caused destruction to the early inhabitants of Louisiana.

They overcome these challenges by learning better agriculture techniques that took advantage of the flooding of the rivers and the fertile soil left by this phenomenon. They also constructed impressive places and buildings for that time, as was the case of the oldest mound complex known in the United Staes: Watson Brake, close to modern-day Monroe, Louisiana.

the arab empire adopted the muslim religion as their main belief. arabs would influence the people from the territories they invaded towards islam (the muslim belief).

nevertheless, throughout the history of the arab empire, rulers brought intellectual individuals from other religions to their centers of learning. these other foreigners included jews, christians, greeks, persians, and indians.   these resulted in the adoption of important knowledge developed by these cultures by the arabic empire. for example, the works of aristotle were translated from greek to arab and indian scientists brought the numerical concept of "zero" to the arabs.

nowadays, 93% of the arab population is muslim, which at the same time is subdivided in sects including the sunni, zaini, alawi, shia. the remaining 7% is composed mainly of christians.

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.