Answer:
It is positive. B/c nucleus consists of postively charged particles called Protons, and neutral charged (no charge) particles called neutrons. So it has a net positive charge.
Explanation:
It's not always available , because its not windy everyday
True. If we all work together to conserve our resources, then the earth will be able to sustain its human population. In this century, many people don't really care about conserving resources because they are too careless to think about how much resources we are wasting on a daily basis. If everyone realizes how much resources we are wasting and helps to conserve them, than earth will have sufficient resources to sustain its human population.
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Inhale and exhale because you inhale the oxygen and exhale the carbon dioxide
