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The metric prefix for 10 is deka-. This is similar (but different) from the metric prefix for 1/10 which is deci-
Indicate is the base word for indicator.
BASE
To indicate direction of flow of the substance being carried and distributed by that emitter. For example, plumbing parts often indicate direction of flow of the water or gas so that the parts function properly.
It would indicate whether something is an acid or a base.
phenol red and litmus paper can indicate an acid or base
Red cabbage or beetroot juice will do the job.
To indicate the change of its Ph nature either from acid to a base or a base to an acid
In the metric systems, unlike other systems, there is only one unit for each measurement; e.g the only unit for length is the metre. For lengths much longer, or much shorter, we use prefixes to indicate the fraction or multiple of the metre.For short lengths the fractions are thousandths, millionths, billionths; for which the prefixes are milli-, micro-, and nano-.For longer lengths, the multiples are thousands, millions, and billions; for which the prefixes are kilo-, mega-, and giga-.The prefixes indicate the fraction,or the multiple of the base unit.
When Roman numbers reach 4 thousand, a BAR can be placed above a base number to indicate that it is a multiple of 1,000. Another method is to place the base number within parentheses to achieve the same goal.
the base.
It indicates the value zero in any base.