There are different plants and animals that grow or live in different climates. The people living in these climates have their own food sources eg.in Europe we have cows, pigs vegetables...;in Africa they have giraffe and buffalo and other such animals! People make their food and sandwiches out of what is available to them. So a European lunch, diner or breakfast would be very different to a South American lunch, diner or breakfast. but the food in Spain would be very different to the food here in Ireland. Also there sandwichs would be very different!
A typical Irish sandwich would consist of either jam and butter or ham with a sprinkeling of cheese with mayonaise or some other such condament oozing out the side.116 In Australia you might find something mad like a kangaroo or koala bear sandwhich. In France you might find something slimey like frogs legs, snails, pate veil or liver...! Also different vegetables are used in different countries. In Ireland people put all different types of vegetables in their sandwhiches eg. letace, sweatcorn, beetroot onions and pickled gurkens. Spanish people might put peppars in New Zealand if you where a bit mad you might even put a yam in your sandwhich.