Economy of Afghanistan that Afghanistan was nearing self-sufficiency in grain production. The availability of land suitable for grazing has traditionally made animal husbandry an important part of the economy. There are two main types of animal husbandry: sedentary, practiced by farmers who raise both animals and crops; and nomadic, practiced by animal herders known as Kuchis. Natural pastures cover some but are being overgrazed. The northern regions around Mazar-i-Sharif and Maymanah were the home range for about six million karakul sheep in the late 1990s. Most flocks move to the highlands in the summer to pastures in the north. Oxen are the primary
A-type main-sequence star also occasionally sees Delta Leonis (A4 V) listed as a standard. There are no published A6 V and A8 V standard stars. A-type stars are young (typically few hundred million years old) and many emit infrared (IR) radiation beyond what would be expected from the star alone. This IR excess is attributable to dust emission from a debris disk where planets form. Surveys indicate massive planets commonly form around A-type stars although these planets are difficult to detect using the Doppler spectroscopy method. This is because A-type stars typically rotate very quickly, which makes it difficult to measure the small