Representatives. The United States is divided into 435 congressional districts â 36 in Texas â each with a population of about 710,000 individuals. Each district elects a representative to the House for a two-year term. Representatives are also called congressmen/congresswomen.
Confronting the Causes of Urban Sprawl. Causes of urban sprawl include: 1  Consumer and real estate industry preference for large houses and large lawns.  Dislike of housing density by a vocal and often uninformed minority that equates density with public housing, undesirable apartment complexes and rental tenants, and traffic and noise.
What causes hypocapnia. Hypocarbia is caused by chronic hyperventilation (or an automatic deep breathing pattern) leading to alveolar hypocapnia (lack of CO2), and if there is no ventilation-perfusion mismatch, to arterial CO2 deficiency.