Question

There are 3 unknown metals A, B and C. ‘C’ displaces B from its oxide

when heated However there is no reaction when C is heated with the oxide

of A. Arrange the A,B,C in the increasing order of the reactivity . ​

Answer 1

Answer:

Like humans and animals, plants need both water and nutrients (food) to survive. Most all plants use water to carry moisture and nutrients back and forth between the roots and leaves. Water, as well as nutrients, is normally taken up through the roots from the soil. This is why it’s important to water plants when the soil becomes dry. Fertilizer also provides plants with nutrients and is usually given to plants when watering. The most important nutrients for plants growing needs are nitrogen (N), phosphorus (P), and potassium (K). Nitrogen is necessary for making green leaves, phosphorus is needed for making big flowers and strong roots, and potassium helps the plants fight off disease.

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