Answer:Primary succession occurs in essentially lifeless areas—regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. ... These grasses further modify the soil, which is then colonized by other types of plants. Places where primary succession occurs include newly exposed rock areas, sand dunes, and lava flows. Simple species that can tolerate the often- harsh environment become established first. These organisms help enrich the soil, allowing other species to become established.
Explanation:
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1kg = 1000g
think about it like this
smaller untis take more to make a bigger picture and that 10 is only 10 percent of 100 use your graph to make the conversion true
Answer:
B
Explanation:
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The answer is D, Plate Tectonics