Postings without closing dates are often positions that are difficult to fill or ones that come open frequently. An example of a position that is difficult to fill is a psychologist at a small-town state hospital. If the hospital left the job open for a month, it is unlikely to get a sufficient number of applicants.
The Disadvantages of Tidal Power Tidal power is growing rapidly in interest as countries look for ways to generate electricity without relying on fossil fuels. Tidal schemes have a number of advantages, including their lack of greenhouse gas emissions and 100% renewable nature.
Hydropower advantages and disadvantages. Ned Haluzan. Hydropower is also sometimes called water power, and is basically a power that is coming from the force or energy of moving water. Hydropower offers some advantages over some other energy sources but there are also some disadvantages that should also be mentioned.Let's start with advantages.ed Haluzan. Hydropower is also sometimes called water power, and is basically a power that is coming from the force or energy of moving water. Hydropower offers some advantages over some other energy sources but there are also some disadvantages that should also be mentioned.