A. Heating the soil sample in an oven
B. Aerating the soil sample
C. Refrigerating the soil for some hours
D. Pouring hot water on the soil to enable the organism float
E. Placing a lighted electric bulb over soil in a funnel

Correct Answer:

Option E – Placing a lighted electric bulb over soil in a funnel

SEE ALSO  In plants which of the following is required in minute quantities for growth?

Copyright warnings! Do not copy.