Once enough charge has been separated in a growing storm, a lightning flash can occur. These normally travel within or between clouds (abbreviated CC) or from cloud to ground (CG). Most storms produce more CC than CG flashes--about six times as many in tropical storms and two times as many in midlatitudes. Sometimes a flash will travel from cloud to air or simply occur within "clear" air.
Exactly what triggers flashes is still uncertain and an area of continued research. It seems that very concentrated electric fields (perhaps at the ends of pointed surfaces or single particles) are needed to accelerate charged particles, or ions. Once moving with sufficient energy, the ions appear to blaze a path toward opposite charge in cascading fashion.
Answer:
B
Explanation:This is because the customer will have a choice of 2 good options that will have the same amount spent for two products
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Answer:
There are various concerns related to the Open Source programming.
Remember
You do not know the sources you are using. ...
Interpreting over license requirements and rules. ...
Find out the cost of the software made from open source programming. ...
Saving on the usability. ...
Explanation:
You don't know full all that is mentioned above when you are working with the open source programming. And that is where problem arises. Its quite hard to take the decisions regarding as mentioned above in such situation. And that creates the problem.
Answer:
C
Explanation:
You need column titles to give the chart data.