Harmsworth`s Universal Encyclopaedia 1920s - Social History.
Map of Europe showing the extent of the ice during the period of maximum glaciation. Glacial deposits extended farther south. Europe went through a major population upheaval about 14,500 years ago, at the end of the last ice age, according to DNA from the bones of hunter-gatherers. An ice age is a long period of reduction in the temperature of the Earth`s surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers. Earth`s climate alternates between ice ages and greenhouse periods, during which there are no glaciers on the planet.
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204716952
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Mjb6661
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授權類型 | 尺寸 | 像素 | 格式 | 點數 | |
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標準授權 | XS | 480 x 381 | JPG | 13 | |
標準授權 | S | 800 x 635 | JPG | 15 | |
標準授權 | M | 2158 x 1712 | JPG | 18 | |
標準授權 | L | 2510 x 1991 | JPG | 20 | |
標準授權 | XL | 3175 x 2519 | JPG | 22 | |
標準授權 | MAX | 3889 x 3085 | JPG | 23 | |
標準授權 | TIFF | 3052 x 2421 | TIF | 39 | |
進階授權 | UEL | 3889 x 3085 | JPG | 88 |
XS
S
M
L
XL
MAX
TIFF
UEL
標準授權 | 480 x 381 px | JPG | 13 點 |
標準授權 | 800 x 635 px | JPG | 15 點 |
標準授權 | 2158 x 1712 px | JPG | 18 點 |
標準授權 | 2510 x 1991 px | JPG | 20 點 |
標準授權 | 3175 x 2519 px | JPG | 22 點 |
標準授權 | 3889 x 3085 px | JPG | 23 點 |
標準授權 | 3052 x 2421 px | TIF | 39 點 |
進階授權 | 3889 x 3085 px | JPG | 88 點 |