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pollution is everywhere in the world polluted air and water in one place affects distant areas people all over the world are responsible for the pollution problem all of the above
Few spacecrafts complete their flight operations. The Earth’s gravity cannot be overcome. No future power is needed after the escape speed is reached. "Free fall" takes the place of the Earth’s gravity pull.
having killed killing being killed killed
Few spacecrafts complete their flight operations. The Earth’s gravity cannot be overcome. No future power is needed after the escape speed is reached. "Free fall" takes the place of the Earth’s gravity pull.
inspired; which inspiring；that inspired ; that spread; which
nature' s own pace is slowing down rapidly the "working capital" of recycled material has all been used up the earth' s resources cannot be replaced by man the earth' s growing population requires more and more resources
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