1.   But when a cold or virus causes nasal congestion, that important air supply is cut off.

2.   Exposure to passive smoke can cause nasal congestion and irritate the lining of the ears, both of which help set the foundation for ear infections.

3.   In Brazil, the congestion is caused by constantly changing laws, a lack of respect for legal precedent, and a multitiered appeals system.

4.   Snoring also may result from upper-respiratory infections, nasal polyps, nasal allergies or exposure to irritants that cause congestion or obstruct nasal breathing.

5.   That can cause congestion.

6.   The congestion has been caused by construction projects, the acquisition of the Southern Pacific by the Union, Pacific, and strong demand for freight hauling services.

7.   The congestion has been caused by construction projects, the acquisition of the Southern Pacific Rail Corp. by the Union Pacific, and strong demand for freight hauling services.

8.   The issue is whether those who sell coffee or silk ties or incense cause too much congestion, particularly in downtown Manhattan and the busier areas of midtown.

9.   The message warned that mass attempts to access Starr sites could cause congestion and reminded employees of the company policy against non-business use of the Net.

10.   The oxygen-filled blood then passes through the lungs again, eventually causing lung congestion.