The nutrients in topsoil that support plant growth come from <span>plant and animal matter that is decaying.
When a plant or an animal is decaying, it releases nutrients which are beneficial for the soil. If the soil is healthy and thriving, it means that the new plants which are about to appear will grow more healthily and produce their 'goods.'
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Answer:
Area denometer and square expression
Are you referring to a picture? if not, stars range in size from neutron stars, which vary anywhere from 20 to 40 km in diameter