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Author Question: Before the intrusion of outsiders, what were the economies of lowislands based on? a. industry and ... (Read 61 times) |
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
The average adult has about 21 square feet of skin.
The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.