Overview. If you frequently experience shortness of breath or you hear a whistling or wheezy sound in your chest when you breathe, you may have asthma â a chronic condition that causes inflammation and narrowing of the bronchial tubes, the passageways that allow air to enter and leave the lungs.
1 At 47,958 kilometres (29,800 miles) in total length, the Pan-American Highway is the longest road in the world.  The road starts in Alaska, North America and ends in the lower reaches of South America.
Interstate 80 (I-80), US. Interstate 80 (I-80) is passes through eleven states in the Unites States of America. Interstate 80 (I-80) is also known as Christopher Columbus Highway in United States of American. This longest highway is about 4,666 kilometer long. Interstate 80 (highway) is also known as 2nd longest interstate highway in the United States of America. The highway begins at an interchange with in San Francisco (City in California) and ends at New Jersey (US State). 9.