Answer:
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Explanation:
Answer: [B]: The letter, "<em /> I " ; for current; in units of "Amps" .
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Answer: What is the difference of physical quanity and a unit?
Explanation: If you are working science or math problems, the answer to this question is that quantity is the amount or numerical value, while the unit is the measurement. For example, if a sample contains 453 grams, the quantity is 453 while the unit is grams.
1 and 4 are tire.
2 and 3 are not.
D) although recent research (1990's) has shown Uranus and Neptune to be ice giants and have heavier substances.
