Which of the three countries (Chile, Peru, Venezuela) has the most contrasting environmental conditions?

Brazil and Argentina are huge in area, and the climate is different in different parts. But the most contrasting country by natural conditions is Chile. Pressed by the tall Andes to the Pacific Ocean, it is very narrow from east to west. But from north to south the length is more than a thousand kilometers, from the Atacama desert, where the famous copper mines, to the island of Tierra del Fuego, where cold winds blow. There are practically no plains here, and a large difference in altitude determines the sharp variability of the weather in any region of Chile.

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