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The hepatitis B virus is present throughout the world and the cause of recurrent epidemics.
It hardly ever rains in the Gibson desert in Australia.
Glaciers are formed by a periodic process of sublimation and recrystalisation.
Coconuts grow on trees in clusters of 10 or 20.
It frequently rains in Belgium.
He has reached the peak of his career.
An overgrown garden
Before building the prototype, further research will be necessary.
Chameleons, unlike human beings, can survive a drop of 46% of the bodily fluids.