Pioneer species usually reach new environments on a. wind and water
c. water and deposition
b. water and erosion
d. erosion and wind
Please select the best answer from the choices provided

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atp is used for energy.

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.