Which one describes how much matter an object contains , using si units?
a. 43 kg
b. 38 pounds
c. 65 m
d. 89 seconds

To determine how much matter an object contains, you would use a. 43kg

Si units or Systeme' de Internationale' is a widely adopted unit system in measuring basic and derived dimensions In this case, the SI units here are kilograms, meter and seconds. Pounds is an English unit. Mass is the measure of how much matter an object contains, hence the answer is A. 43 kg. 

I hope this helps!! ^_^

Because the dept in the ocean