C. The area of the US doubled
The advantage of using passive or active solar systems was these systems release low amounts of carbon dioxide or other pollutants. Thus, Option C is the correct statement.
<h3>What is the benefit of using Passive or active solar systems?</h3>
One of the best reasons to use effective solar technology is to reduce your energy bills. Active solar systems can include expensive hardware, and Passive solar systems may create the cost of renovating your home, but a reduction in your utility bills will ultimately outweigh the costs.
Thus, Option C is the correct statement.
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Answer: B, as rivers carry sediment to the ocean, they can create triangular plains called deltas.
The effects socially would be that the delivery will not be well respected and their will be conflict between the deliver and customer, business, etc . The effects economically would be that the business will start to decline in customers of interest in that area and potentially will make a bad name for that business in general, meaning less business and less money. This leads to a drop in business status worldwide. The effects environmentally are possibly limitless, it affects everything. By the service being poor many things and people could suffer, including greenery and yardwork or whatever. There will be an effect on environment but it depends on the service and how poor it is.