The LITHOSPHERE is the rocky outer part of the earth , is is made up of the brittle crust an top of the mantle.
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B number is your answer thas correct
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it helps the human to function properly
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Having HIV/AIDS weakens your body's immune system. It destroys the white blood cells that fight infection. This puts you at risk for opportunistic infections (OIs). OIs are serious infections that take advantage of your weak immune system.
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The idea of using recycle tires at playgrounds is a concern for some scientists because they contain carcinogenic substances.
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Recycle tires are in playgrounds as rubber mulch. This one is on the playground's floor to cushion the impact of any falls that kids may have while playing. The problem with this product is that, as they are old tires cut into little pieces, they still have the tires' toxins such as arsenic, benzene, cadmium, mercury, etc. Exposure to these toxins can cause cancer. This is why some scientists are concerned with this material in areas where kids are exposed to it since they are more vulnerable to carcinogens than adults.