1 Answers
The presence of termites and earthworms in soil does not promote…
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The presence of termites and earthworms in soil does not promote
A. porosity and fertility
B. porosity and aeration
C. aeration and fertility
D. acidity and aeration
QUICK ANSWER…
D
DETAILS…
The activities of termites and earthworms in soil influence to a degree its properties such as porosity, aeration and fertility.
Now for the right answer to the above question:
- Earthworms and termites often burrow into the soil, causing a level of porosity. Earthworm’s secretions and excrements are nitrogenous compounds which could improve soil fertility. Termites too are decomposers which help recycle nutrients in soil. so, A is incorrect.
- Aeration and porosity are close in meaning; termites and earthworms promote both. B is also incorrect.
- Option C and A are essentially the same. So, C is also incorrect.
- D is correct; termites and earthworms do not promote the acidity of soils.
QUICK ADVICE…
You may please note that:
- Porosity and aeration are almost the same; while porosity has to do with space between the soil particles, aeration has to do with the air occupying this space.
- Termites and earthworms are not known to secret acids into the soil.
Use the questions and answers session to raise more questions and deal further on this topic…
/ culled from 2017 JAMB-UTME biology question 22 /
