De los siguientes, el evento más reciente en la escala de tiempo geológico es la aparición de: A. La especie humana.
B. Las plantas terrestres.
C. Las plantas con flores.
D. Las aves.
E. Los reptiles.

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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c is the answer to this question. altitude affects the weather because air molecules evaporate.