Reducere. Like many viruses, smallpox is highly contagious. It's also dreadful, deadly, and thanks to microscopes and modern technology--now officially eradi...
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Reducere. Like many viruses, smallpox is highly contagious. It's also dreadful, deadly, and thanks to microscopes and modern technology--now officially eradi...
crabtree publishing company, carti, carte straina, children's
Reducere. More than 38 million people around the world live with HIV/AIDS. For decades, scientists have been studying AIDS and the HIV virus that causes it. ...
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Reducere. "We need to look after our planet, because our planet looks after us. If we all make small changes to protect the planet, we will see big results."...
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Reducere. See below for English description.La planète bleue. Gaia. Terra. Voici quelques-uns des surnoms de notre belle planète. Malgré ces nombreuses appel...
Reducere. Cancer is not just one disease. There are many types of cancer, and research to find cures owes much to the microscope and the study of cells. This...
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Reducere. Whre is the Bermuda Triangle and what happens to travelers who pass through the area? Where did the huge stone figures on Easter Island come from? ...
crabtree publishing company, carti, carte straina, children's