Convection currents form in atmosphere and freshwater lake. Convection currents occur when there is difference in temperature in both substances (eg. fluids). When there is a difference in temperature, the hot substance rises and the colder one sinks. The flow then will be form a hotter to the colder region.
Aqua man's mother and father
The answer would be D. The three sides in the triangle are Satisfaction with roles in life, Feelings of self-worth, and Positive relationship with others.
Answer: D. Shipping technologies advanced immediately
