Use the equation d = m/v [stack fraction), where d = density, m = mass, and v = volume. If a rock has a density of 10 g/cm3
and a volume of 15 cm3, what is its mass?

littering streams           is the answer

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.

1. is geographic distribution

2 is increasing complexity

3 is transitional forms

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

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