Complete the text with suitable prepositions.

Camels are one of the few animals that can live in a desert. Camels have humps (a) _____ their backs. They store fat (b) _____ these humps. The fat gives them energy. Because camels do not store water, fat helps produce water when camel move (c) _____ the dry desert. They can go (d) _____ several months without water. Camels eat grass to get moisturE- The camels are as useful (e) _____ the people of the desert as the buffalo are (f) _____ the grasslands. The meat of the camel is good to eat. People make cloth (g) _____ of  camel hair. Shoes are made (h) ' the hides. The camels also good (i) _____ travel in the desert. Some people travel the desert  (j) _____ camels to make a living.