Table of Contents
Desirable changes are the one which are brought about by nature and results produced by these changes are good results or useful results. Example: rain bringing water to the crops, milk changing into curd, ripening of seedlings of fruits into a plant.
What is desirable change give example?
Desirable changes are those changes which we want to occur. These changes are useful for us. For example : ripening of fruits , germination of seeds , change in season etc. Non desirable or Undesirable changes are those changes which we do not want to take place.
What is desirable change and undesirable change?
Desirable Changes: Those changes which are desired to occur that is, we want them to take place are known as desirable changes. Examples: ripening of fruits, germination of seeds etc. Undesirable change: Those changes which we do not want to take place are called undesirable changes.
What is desirable example?
The definition of desirable is something or someone attractive and wanted. A great job that everyone wants is an example of something that would be described as a desirable job. Worth having or seeking, as by being useful, advantageous, or pleasing.
Which one of the following is a desirable change?
Desirable changes are those that are beneficial[useful]. Milk changing into curd,a seed germinating and forming a new plant and bees changing nectar into honey are some examples of desirable change. Undesirable changes are those that are not.
Which is not a desirable change?
Undesirable change: Those changes which we do not want to take place are called undesirable changes. Examples: rusting of iron, souring of milk, rottening of fruits etc.
What is desirable friction?
Friction is Desirable: A friction is very much desirable to stop the body from its moving condition. If there is no friction between the contact surfaces then a body cant be stopped without the application of external force. Thus friction is desirable or undesirable depending upon the condition and types of work.
Can a change be both desirable and undesirable?
Hey mate, here is your answer : Yes, there are changes that are of desirable and undesirable. Desirable changes are the changes which are useful to us while undesirable changes ate the change which are harmful to us.
Is a reversible change?
A reversible change is a change that can be undone or reversed. If you can get back the substances you started the reaction with, that’s a reversible reaction. Examples of reversible reactions include dissolving, evaporation, melting and freezing.
What is difference between reversible and irreversible change?
A change which cannot happen backward, that is, it cannot be reversed is called an irreversible change.Difference between physical and chemical changes. Physical changes Chemical changes Mostly reversible changes. All are irreversible changes. A new substance is not formed. A new substance is formed.
What is a desirable quality?
: having good or pleasing qualities : worth having or getting. : sexually attractive.
What is desirable man?
A truly desirable man is a man who doesn’t only care about his own life, but who also cares about the lives of the people around him. He wants to make an impact and he doesn’t plan to leave the world without changing a few lives. There are many ways to make an impact on the world.
What is desirable value?
Something that is desirable is worth having or doing because it is useful, necessary, or popular.
What are some examples of very fast changes?
Some changes are fast and immediately observable, such as earthquakes, volcanoes, flooding, and landslides. Other changes are slower and occur over a longer period of time, such as weathering and erosion. These gradual processes shape landforms with water, ice, wind, living organisms, and gravity.
What is natural change?
The term natural change (natural increase or natural decrease) in a population is the difference between the number of births and number of deaths in the population. If the number of births is greater than the number of deaths, then we have: natural increase = (number of births) – (number of deaths).
Is cooking a desirable change?
Answer: Chemical change :— Cooking of food, spoiling of food , withering of crops, ripening of fruit, rusting of iron, setting of curds .
Are all changes desirable?
Answer: Hello! Not all changes are desirable. Some changes produce good results, while other changes (undesirable changes), are unfavourable.
Are all physical changes reversible?
Physical changes can further be classified as reversible or irreversible. Physical changes that involve a change of state are all reversible. Other changes of state include vaporization (liquid to gas),freezing (liquid to solid), and condensation (gas to liquid). Dissolving is also a reversible physical change.
What is fast change?
The changes that are completed in short or very short duration of time are called fast changes. Examples of slow changes: Rusting of iron, as it takes many days. Some of the fast changes are spontaneous, meaning that they occur in a second or even less amount of time.
Who is friction sometimes desirable?
In some cases, friction is desirable while in other cases, friction reduces the effectiveness of machines. Without friction, you would not be able to walk, the wheels on a vehicle would have no grip on a road surfacing and the vehicle would not be able to move forward.
What is desirable effects of friction?
Desirable effects of friction are: It helps us in movement. walking is just not possible without friction. It helps to stop a moving object like a car.
What are effects of friction?
The force of friction opposes the motion of an object, causing moving objects to lose energy and slow down. • When objects move through a fluid, such as air or water, the fluid exerts a frictional force on the moving object.
Is rain a desirable or undesirable change?
yes rain changes desirable and undesirable. excess of rain fall may lead to cause flood due to the rise of water in river’s,lake’s and pond’s. the flood cause a big damage to crop’s,animals,property and human life.
Why is it so that curdling of milk may be considered desirable as well as undesirable?
Once changed into curd , we can’t change it back to milk. Thus, it’s an irreversible change. It is a desirable process as it is a milk product it very important for the supplement of calcium which is required by bones and for many reactions. It provides good bacteria and assists in digestion.
What is the difference between chemical change and physical change?
In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed. All chemical reactions are reversible although this can be difficult in practice.
