The first and the last choice is the same, aren't they?
Methane
CH₄
___________________________________________________
Answer:
answer A makes the most sense
Explanation:
it's the only one the describes measuring the acid in the air from a factory (humans) I may be wrong tho
Answer:
c) 10 millimeters (mm)
Explanation:
The unit conversions are as follows:
1 cm = 10 mm (millimeter)
1 cm = 0.01 m (meter)
1 cm = 0.00001 km (kilometer)
1 cm = 10000 μm (micrometer)
Based on the above conversions:




Therefore, 0.1 cm = 10 mm is incorrect instead it is 0.1 mm