which reason best explains why certain areas of Southwest Asia have low population density?

To accurately answer your question regarding the low population density in certain areas of Southwest Asia, I can provide some common reasons:

a. Arid Climate: Many regions in Southwest Asia are characterized by harsh, dry climates, which limit agricultural opportunities and access to water resources.

b. Geographic Barriers: Mountain ranges and deserts can isolate regions, making them less accessible and less desirable for settlement.

c. Political Instability: Ongoing conflicts or political instability can deter people from settling in certain areas, leading to lower population density.

d. Economic Factors: Limited job opportunities and poor infrastructure can also contribute to lower population densities, as people tend to migrate to areas with better prospects.

If you have specific options labeled a, b, c, and d that you'd like me to evaluate, please share those options for a more tailored response!

What happened in 2014 that made the ongoing Civil War and Syria even more complicated
a the Arab Spring led to demonstrations in Syria b
The assad government used chemical weapons c
Isis wants to attack on Syria
d the United States attacked the Syrian Air Base

In 2014, the Syrian Civil War became even more complicated primarily due to the rise of ISIS (the Islamic State of Iraq and Syria) and its expansion into Syria. Therefore, the best answer to your question would be:

c. ISIS wants to attack in Syria.

This reflects the increasing complexity of the conflict as ISIS sought to establish a caliphate, adding an additional layer to the already chaotic situation in Syria, which included the ongoing rebellion against the Assad government and various other factions involved in the conflict.

While the other options also represent significant events in the broader context of the Syrian Civil War, the rise of ISIS in 2014 marked a crucial turning point and introduced new dynamics to the conflict.