Soil is our life support system. Soils provide anchorage for roots, hold water and nutrients. Soils are home to myriad micro-organisms that fix nitrogen and decompose organic matter, and armies of microscopic animals as well as earthworms and termites.
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Answer:
Energy cannot be created nor destroyed
Explanation:
Law of conservation of energy
Answer:
The statements which are correct are;
c) (i), (ii) and (iv)
Explanation:
The chemical equation is presented as follows;
2Fe(s) + 3H₂O(g) → 3Fe₂O₃(s) + 3H₂(g)
Therefore, we have;
i) The iron gains oxygen atoms and therefore gets oxidized
The iron loses 3 electrons each to become oxidized to Fe³⁺ in Fe₂O₃
ii) The water loses oxygen and therefore it is getting reduced
iv) The water donates oxygen and therefore it is acting as the oxidizing agent
The correct options are (i), (ii) and (iv).
The answer to this question would be: oxygen atom
An atom can have a different character because it was made up by the interaction of the number of their proton, electron, and neutrons. Proton from oxygen atom will be same as the protons from gold atoms. So, if you take 8 protons and replace 8 protons, the number of protons will not change so the atom will be still an oxygen.
