What is a disadvantage of solar thermal systems?Question 10 options:There are some direct emissions of CO2 and other air pollutants. There are high costs associated with the necessary natural gas turbine backups. There is low potential for growth. The systems have low net energy yield and high costs. The high technology requirements could displace jobs for local workers.

The systems have low net energy yield and high costs.

Explanation:

In the case of the solar thermal power/electric generation systems it collects and concentrate the sunlight in order to generate the heat of high temperature so that the electricity could be generated. It mainly have two components i.e. reflectors and the focus sunlight

So the disadvantage of this is that it develops the less net energy yield also it cost is high so not everyone could afford it

the assumption the narrator makes in this excerpt is that the messages he heards were going to hurt the narrator's mom; the narrator just springs in to action. the narrator doesn't specify in this excerpt why he believes that the messages present a problem that requires protection.

answer; consideration;