Question

ii) The process of nutrition in animal has ..
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a) three
b) four
d)
A live
iii) Acidic substances are
... in nature
a) soapy b) corrosive
c) cold
change as on
iv) Melting of candle is.
solid
b) chemical
c) neutral​

Answer 1

Answer:

There are five steps in the process of Nutrition in animals. These are: Ingestion, Digestion, Absorption, Assimilation and Egestion.

An acidic substance is sour-tasting; reacts with litmus paper, bases and metals; conducts electricity; and has a pH of less than 7. An acid can be classified as strong or weak based on its reactivity, conductivity and pH level.

When you light a candle, the heat of the flame melts the wax near the wick. This liquid wax is then drawn up the wick by capillary action. The heat of the flame vaporizes the liquid wax (turns it into a hot gas), and starts to break down the hydrocarbons into molecules of hydrogen and carbon.