How can you identify a tap root system? a. there are secondary roots of different sizes b. there is no primaryroot. all roots are thin and almost of the same size c. there is a prominent primary root from which secondary roots branch out

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.

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves