ANSWER
The correct answer is B.
The question asks for an incorrect way to represent a physical quantity. A physical quantity is always represented using the value (e.g 10) and its unit (e.g kg).
Option A has both the value (10) and unit Kelvin. Option B has the correct value but the incorrect unit.
ANSWER
For this question, knowledge of this table is required.
The question is assessing the correct prefix for Giga. It is ×10^9.
If we multiply 128 by 10^9 it is = 128 × 10^9 = 1.28 × 10^11. Hence the correct answer is B.
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