Question
Cation exchange capacity of soil organic matter is approximately
10
40
100
140
200
All
None
10
40
100
140
200
All
None
Answers
GPT-4o mini
Cation exchange capacity (CEC) of soil organic matter (SOM) generally ranges between 100 to 200 cmol/kg. Therefore, the correct response based on the options provided would be **200**, as it is the highest listed value and reflects the capacity that organic matter can have in terms of cation exchange.
However, it's important to note that CEC can vary widely depending on factors such as the type and amount of organic matter present, as well as the soil's overall composition. In some discussions, you might also see lower figures cited for different contexts, but generally, organic matter contributes significantly to CEC.
If you seek a definitive answer among the specific choices in your options, it would lean towards **200** as a representative figure.
However, it's important to note that CEC can vary widely depending on factors such as the type and amount of organic matter present, as well as the soil's overall composition. In some discussions, you might also see lower figures cited for different contexts, but generally, organic matter contributes significantly to CEC.
If you seek a definitive answer among the specific choices in your options, it would lean towards **200** as a representative figure.