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Ecological footprints of different countries.
Muskox populations remain in the Arctic all year, though they migrate to higher elevations in the wi
Apparent and True Orbits of Alpha Centauri.
The percentage of women who have cohabited by the age of 45 for 17 countries shows that the ...
People whose behaviors violate norms are often called mentally ill. “Why else would they do such ...
Age structure for three countries