Which properties are NOT commonly used to identify minerals? a . Streak B. Cleavage and fracture C. Hardness D. Solid

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

In each transformation of energy , some energy what?

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer