Yes it is a metamorphic rock because it forms to limestone
<span>The impulse turbine generally uses the velocity of the water to move the runner and discharges to atmospheric pressure. The water stream hits each bucket on the runner. There is no suction on the down side of the turbine, and the water flows out the bottom of the turbine housing after hitting the runner. An impulse turbine is generally suitable for high head, low flow applications.</span>
Answer: B. Carmen refuses again and again to clean her room. Obstinate means to <u>refuse</u> to change your opinion, and REFUSING to clean your room seems to fit that description, keyword being refuse.
The cell membrane is made of a protein layer that is sandwiched between 2 phospolipid layers. It has pores that allow selective passage of substances in and out of the cell.
