Question

Which of the following is a desirable change?
A.Burning of house
B.Floods
C.Land slides
D.Burning of cooking gas

Answer 1

Hint: Desirable means that something we wish to happen. We will not want something to happen that will cause harm to us or the society in which we are living. Anything that will create disturbance in the lives of people will be an undesirable change and the one that is harmless will be desirable.

Complete step by step solution:
Let us look at each of the given options and see whether we would desire to have the events given in the options:
A house is a place where we live. If we will start burning the house we will have no residence. This will bring no good to us and is clearly not a desirable change.
Flood is termed as a natural disaster. Thousands or millions of people die in the areas where floods occur. It mainly occurs in the coastal regions. The flood affected areas are hit very badly economically as well as mentally. It is definitely not a desirable change.
A landslide commonly occurs in the mountain areas. A landslide is the movement of rock, earth or other things. It is another natural disaster. It badly hit the geology of the place where it occurs and hence is also an undesirable change.
Cooking gas is the liquefied petroleum gas that we all use in our homes for cooking. It helps in cooking out food that gives us the ability to do other things. Undoubtedly, the burning of cooking gas is desirable for us.

Hence, option D is correct.

Note: Any organic compound on complete combustion forms carbon dioxide and water and so the Burning of cooking gas which is also an organic compound, produces carbon dioxide and water.