What is prepared steel? When scrap metal is referred to as being ‘prepared’, it means that it has been cut to a certain length, as determined by the particular dealer and the type of metal that it is. Keep in mind that prices are constantly changing, so you should take the metal into the dealer … Read more
On what planet can we live? After Earth, Mars is considered the most habitable planet in our solar system for several reasons: Its soil contains the water to be extracted. It is not too cold or too hot. There is enough sunlight to use solar panels. On what planet do we live? Earth, our planet, … Read more
If you are looking at a duct that is coming off the furnace and going straight up like it is going to the upstairs, and the wing is in the same direction as the duct, it is open. If the wing is in the opposite or vertical position to the ductwork, then the damper is … Read more
How does recycling help greenhouse gases? For starters, recycling reduces waste sent to landfill. Recycling also saves our natural resources, reduces carbon emissions and energy consumption. Food scraps that end up in landfill rot and produce methane, a greenhouse gas that is 25 times stronger than carbon dioxide at trapping heat in the atmosphere. How … Read more
What is the isotope symbol? These different atoms are called isotopes. To write the isotope symbol, put the atomic number as a subscript and the mass number (protons and neutrons) as superscript to the left of the atomic symbol. The symbols for the two naturally occurring isotopes of chlorine are written as: 3517Cl and 3717Cl. … Read more
