Answer:
cold fronts form between two air masses that barely move, while stationary fronts form when a warm air mass is trapped between two cold air mass.
It's B, I got it right. You would do chest thrusts if their torso is to big to reach around or if they're pregnant.
Research on brain development suggests that risky behavior in teens may be the result of incomplete development and changes that occur in the prefrontal cortex of the brain.
The prefrontal cortex is located in the frontal lobe, behind the frontal cortex. The function of this region is for executive function, an ability to differentiate good things from bad things and consequence of an activity. Incomplete development will impair those abilities, makes the teens do risky behavior.
The answer to your question is D.
Answer:

Explanation:
Given that:

For a continuous centrifuge ; solid recovery R ∝ 
where;
ω = angular velocity of the centrifuge in rpm
Q = flow rate
SO;


÷ 


