Answer:
Explanation:
Nitrogen cycle consists of four main steps namely:
Nitrogen Fixation.
Ammonification/ Decay.
Nitrification.
De-nitrification.
Answer:
C
Explanation:
Acidic soils mean they have more of Al3+ and H+ ions which are acid forming cations. These cations make alkaline forming ions unavailable to plants as nutrients. When the pH of the soil is raised, the Al3+, Fe3+, and H+ are neutralized. The ions bind with –OH ions hence releasing the ions in the negatively-charged sites on the hummus to play a role in the nutrient exchange.
It is the spinal cord that does it.
Answer:
Similarities among organisms lead scientists to relate organisms
Explanation:
Fossils found in sedimentary rock can be compared to one another and to living organisms to compare similarities and differences.
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