Answer :

To determine how many micrometers are in 33 millimeters, we need to understand the relationship between millimeters and micrometers.

1. Understanding Units:
- 1 millimeter (mm) equals 1,000 micrometers (μm).

2. Conversion Process:
- To convert from millimeters to micrometers, we multiply the number of millimeters by the conversion factor of 1,000.

3. Performing the Conversion:
- Given: 33 millimeters
- The conversion calculation is as follows:
[tex]\[ \text{micrometers} = \text{millimeters} \times 1000 \][/tex]
Substituting the given value:
[tex]\[ \text{micrometers} = 33 \times 1000 = 33,000 \text{ μm} \][/tex]

Therefore, the correct answer is:
- 33,000 μm

So, the answer is:
O 33,000 чm