Resistance is caused by

a. Ohms
b. battery size
c. electrical friction
d. positive charges

As seen in a us weather map, the h (or high) and l (or low) symbols indicate regions where surface air pressures are high or low, respectively, compared to surrounding areas. an h is plotted where the air pressure is highest and an l is plotted where the air pressure is lowest. proceeding outward and away from the center of a high pressure system, the air pressure "

The diagram shows an example of convection. which label belongs on the arrow? a) warmer water sinks b) warmer water rises c) cooler water sinks d) cooler water rises

Any device that makes work easier is called a .