"The natural world"Завантажити презентацію
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With the development of civilization not only our environment has changed but also the habits of animals.
Wild animals became lazier and they hunt less. Sometimes they want to find food in the cities and often are killed there.
Birds well adapted to city conditions, they often arrive in places where people throw out food
Proteins from sawmills get to people into houses what to eat. The reason of the such - lack of natural food