Did Antarctica used to be hot?

Did Antarctica used to be hot? Climate change Some of Antarctica has been warming up; particularly strong warming has been noted on the Antarctic Peninsula. A study by Eric Steig published in 2009 noted for the first time that the continent-wide average surface temperature trend of Antarctica was slightly positive from 1957 to 2006. Did […]

What happens during the formation of a solution?

What happens during the formation of a solution? In order to form a solution, the solute must be surrounded, or solvated, by the solvent. Solutes successfully dissolve into solvents when solute-solvent bonds are stronger than either solute-solute bonds or solvent-solvent bonds. What are the factors affecting solution? Factors affecting solubility Temperature. Basically, solubility increases with […]

What are the characteristics of Zener diode?

What are the characteristics of Zener diode? Zener Diode Specifications Zener/Breakdown Voltage – The Zener or the reverse breakdown voltage ranges from 2.4 V to 200 V, sometimes it can go up to 1 kV while the maximum for the surface-mounted device is 47 V. Current Iz (max) – It is the maximum current at […]

What are the types of DFD?

What are the types of DFD? DFD is of two types: Logical DFD: Logical data flow diagram mainly focuses on the system process. It illustrates how data flows in the system. Physical DFD: Physical data flow diagram shows how the data flow is actually implemented in the system. Physical DFD is more specific and close […]

Why do black squirrels exist?

Why do black squirrels exist? Like many animals with unusual color schemes, black squirrels are the result of a genetic detour. The black squirrel is actually a gray squirrel with a faulty pigment gene carried over from the fox squirrel that turns their fur a darker shade. (Some fox squirrels, which are usually reddish-brown, are […]

Is spring water the same as distilled water?

Is spring water the same as distilled water? Spring water is just as its name implies—water from a natural spring. By leaving the minerals and trace electrolytes in the spring water, you’ll get a crisp, fresh water taste. If you’re asking, “Is spring water distilled?” The answer is no, spring water is not the same […]

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