The group that later took control of the Holy Land, attacked pilgrims, and led Pope urban to call for the crusades was the Seljuk Turks. The correct answer is C.
Poor air and water quality, insufficient water availability, waste-disposal problems, and high energy consumption are exacerbated by the increasing population density and demands of urban environments. Strong city planning will be essential in managing these and other difficulties as the world's urban areas swell.
Answer:placing regulations on factories and industries
Explanation:
The earths most important energy sources the sun
