fiberglass
Fiberglass Insulation, R Value of 3.14. Pine board has an R Value of 1.74
As strange as it may sound dead or still air is one of the best insulators. Insulation such as fiberglass or rock wool and styrofoam work because they are fluffy with trapped air. If you have a sheet of four inch thick R40 fiberglass and squeeze it into a wall made of 2X3 studs you will have less R value than than a 3 inch piece of fiberglass insulation. So the highest R value goes to the insulation that traps the most dead air per inch of thickness and is installed propperly.
Where you find wire insulation with ratings of 300 volts, 600 volts and 1000 volts, these are the highest allowable voltages that can be applied. A wire that is rated for 300 volts is good for 120 volts, 240 volts and 277 volts. At test research facilities, insulation on a wire is tested to destruction. The label that is given to wire's insulation, as a result of the tests, is the highest safest voltages that can be applied to that particular wire. So when you see a wire that has a label stating that it is rated for 300 volts it means that any voltage under and up to 300 volts is safe to apply.
Refractory insulation is defined as insulation for extremely high temperatures. The threshold of temperature of insulation for refractory insulation is > 815 Celsius.
The tropical climate zone receives the highest insulation.
Averaged through the year, Polar Climates receive the least insolation at the surface. Because these latitudes are tilted further from the sun, solar radiation must pass through more of the atmosphere, and is therefore attenuated.
they aksing for which zone has the highest average they not aksing for all oceans.......
fiberglass
Temperate Hot in the summer, cold in the winter Tropical Has highest insulation Polar Has lowest insulation
neritic zone
intertidal zone
noon
ap
Fiberglass Insulation, R Value of 3.14. Pine board has an R Value of 1.74
The highest and coldest climate zone in Latin America is the alpine climate zone, found in high mountain regions such as the Andes. These areas experience low temperatures and snowfall due to their high elevation.
Sunlit zone is the highest layer of the ocean. It gets the most light because of the sun. Most of the animals live there because this zone has the most nutrients. This zone is full of life.