The American Heart Association explains an electrocardiogram (EKG or ECG) is a test that measures the electrical activity of the heartbeat.
Language policy [edit]. Pashto and Dari are the official languages of Afghanistan. In 1980, other regional languages were granted official status in the regions where they are the language of the majority.
Geography of Afghanistan. Hindu Kush mountain range segregates Afghanistan east to west. In the east, they rise to height of 24,000 ft (7315m). Afghanistan is a mountainous country barring the south-west. Tall snow-carpeted mountains and deep valleys occupy most part of the country. Near the sourthern border with Afghanistan are large areas of sandy desert. Four major river systems of the country are Amu Darya, Helmand, Hari Rud and Kabul.