Antarctica would have flora and fauna very different from Sahara - so we can exclude this option. Also, Sahara doesn't have ice sheets - so we can exclude option c too.
The correct answer is d- deserts are usually defined in their relatively low level of precipitation.
Nepal, containing mount Everest, has been shown to have the largest mountain.
Indirect effects include pluvial lakes, changes in sea level, and isostatic depression.
Answer:
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Russia, the world's largest country (by total area), comprises much of northern Eurasia, and stretches over a vast expanse of Europe and Northern Asia.[1] Due to its size, Russia displays both monotony and diversity. As with its topography, its climates, vegetation, and soils span vast distances.[2] From north to south the East European Plain is clad sequentially in tundra, coniferous forest (taiga), mixed and broadleaf forests, grassland (steppe), and semi-desert (fringing the Caspian Sea) as the changes in vegetation reflect the changes in climate. Siberia supports a similar sequence but is predominantly taiga. The country contains forty UNESCO biosphere reserves
