1 Explain that a population pyramid shows the age and sex structure of a population. 2  Point to the horizontal bars, which show the percentage (or the absolute number) of males and females in each age group. 3  Have students interpret the chart.
1 A small-to medium-capacity dehumidifier (11-25 pints) for a living room can run around $100-$250 or more, depending on size and features such as a humidistat to set the desired humidity, auto-shut-off when the tank's full, energy efficiency and quiet operation.
Dehumidifier energy cost will vary quite a bit from unit to unit. Some dehumidifiers will run up your electricity bill a substantial amount, while others, such as Energy Star rated units, will be quite cost effective.f using a desiccant one the answer is yes; however, many units, such as the Energy Star ones, cost quite little to operate. The dehumidifier energy cost will vary depending how much humidity you have and how big an area is. For a typical basement, you can expect to pay around $15-25 per month.