scientific theory-a theory that explains scientific observations; scientific theories must be falsifiable. field theory - (physics) a theory that explains a physical phenomenon in terms of a field and the manner in which it interacts with matter or with other fields.
1 Selecting the carpet-carpeting can cost as little as $2 per square foot, or as high as $100 per square yard, but the average carpet and pad will cost between $30 and $40 per square yard-for a total of around $995 for the carpeting alone. Selecting the carpet-carpeting can cost as little as $2 per square foot, or as high as $100 per square yard, but the average carpet and pad will cost between $30 and $40 per square yard-for a total of around $995 for the carpeting alone.
Eco-Friendly Carpeting. Average price: $3 - $13 per sq foot. You have to be very careful when buying carpet, as it is often produced from petroleum, a non renewable resource. Some carpets can also trap dust and mold, or can release toxins into the air which can be harmful to your health.ince this material is a finite resource which is not biodegradable, using it in a flooring application keeps it out of the land fill, and preserves dwindling supplies of metallic substances. Average price: $35 - $100 per sq foot.