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Anomalous zones of Russia are able to compete on the strangeness of the phenomena with the Bermuda triangle , a wedge of Gibraltar , Sea Devil ...

Ammonium nitrate

The doctrine of the biosphere: sources

Human pressure - standard deviation and options

Salt.

Significance of photosynthesis for the existence of life on Earth

The temperature of the sun and other interesting information about this star

Biosphere and man

The structure of the human ear, jaw and head.

Sulfide and hydrosulfide.

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