Animals in the desert eat the plants, and when the plants are eaten, the feces dropped by the animal is dropped on the ground, with the plant's seeds inside it. The plant seed can then flourish. I'm not sure if this is the kind of answer you want, but this relationship is applicable in most biomes
Pride and Prejudice is very romantic. What most wealthy single men lacked was a wife.
The immediate cause of the Indian Revolt of 1857, or Sepoy Mutiny, was a seemingly minor change in the weapons used by the British East India Company's troops. The Company had upgraded to the new Pattern 1853 Enfield rifle, which used greased paper cartridges. In order to open the cartridges and load the rifles, soldiers (known as sepoys) had to bite into the paper and tear it with their teeth. Rumors began to spread in 1856 that the grease on the cartridges was made from a mixture of beef tallow and pork lard. Eating cows, of course, is forbidden by Hinduism, while consumption of pork is forbidden by Islam. Thus, by making one small change to its munitions, the British managed to greatly offend both Hindu and Muslim soldiers. The sepoys' revolt began in Meerut, the first area to receive the new weapons. British manufacturers soon changed the cartridges in an attempt to calm the spreading anger among the soldiers, but this move backfired. The switch only confirmed, in the minds of the sepoys, that the original cartridges had indeed been greased with cow and pig fat.
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The Europeans wanted goods such as <span>spices and perfumes from the Arab traders. </span>