How should the observed cell be classified?

Some mining processes involve removal of large areas of earths surface in the mined region this practice causes severe environmental damage by allowing which natural process to accelerate in the affected areas? a.precipitation b.erosion c.migration d.condensation

Were you able to observe the nucleolus in any of the cells if so which ones

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above