Label all the following either primary or secondary Succession that occurs in an area with no soil
Succession that occurs in an area where soil is already present
Volcanic eruption covers the land with new rock.
Forest fire wipes out a forest.
Tornado wipes out a forest.

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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