8. A train travels at a at a speed of 30 miles per hour if 1 mile = 1.6 kilometers, how fast is the train traveling in kilometers per minute? A. 0.8 km/min
B. 1.0 km/min
C. 0,4 km/min
D. 0,6 km/min

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

What is the independent variable in this investigation? mass volume sample number substance density