Correct Answer: A

Rationale:
To convert liters to ounces, you need to multiply the volume in liters by 33.814. In this case, 0.5 liters multiplied by 33.814 equals approximately 16.91 ounces. This conversion is commonly used in culinary and liquid measurements.

Choices B, C, and D are incorrect as they do not reflect the correct conversion factor from liters to ounces.

Correct Answer: C

Rationale: The correct answer is C: 0.45.
To find the result of multiplying 0.15 by 3, you simply multiply the two numbers together, which gives you 0.45.
Choice A (0.05) is incorrect as it is the result of dividing 0.15 by 3 instead of multiplying.
Choice B (0.15) is the original number being multiplied and not the result.
Choice D (0.45) is the same as the correct answer but is repeated for redundancy.

Correct Answer: A

Rationale: The correct answer is A: TRUE. 0.25 mg is indeed equal to 250 mcg. This conversion is obtained by multiplying 0.25 mg by 1000 to convert it to micrograms. In pharmaceuticals, it is crucial to understand and convert between different dosage units accurately.
Choice B is incorrect as the two quantities are equivalent.
Choice C, 'Sometimes,' is misleading as the conversion from milligrams to micrograms follows a consistent ratio.
Choice D, 'None of the above,' is incorrect as there is a definitive equivalence between the provided quantities.

Correct Answer: B

Rationale: The correct answer is B: 1000 meters. One kilometer is equivalent to 1000 meters.
Therefore, 1000 meters is the accurate conversion from kilometers to meters.

Choices A, C, and D are incorrect.
Choice A (100 meters) is incorrect as it represents 1/10th of a kilometer.
Choice C (500 meters) is incorrect as it is half the value of a kilometer.
Choice D (2000 meters) is incorrect as it exceeds the value of a kilometer.

Correct Answer: B

Rationale:
To convert 0.2 liters to milliliters, you need to multiply by 1,000 because there are 1,000 milliliters in a liter. So, 0.2 * 1,000 = 200 milliliters.
Therefore, the correct answer is 200 ml.
Choice A (20 ml) is incorrect because it represents 0.02 liters, not 0.2 liters.
Choice C (2 ml) is incorrect as it represents 0.002 liters.
Choice D (2000 ml) is incorrect as it represents 2 liters, not 0.2 liters.