Answer:
Step-by-step explanation:
To determine the greatest amount among 400 mcg, 4000 mcg, 4 g, and 40 kg, we need to convert all the units to the same measurement. Let's convert them to milligrams (mg) for comparison.
400 mcg is equal to 0.4 mg.
4000 mcg is equal to 4 mg .
4 g is equal to 4000 mg .
40 kg is equal to 40,000,000 mg .
Therefore, the greatest amount is 40,000,000 mg (40 kg).
