प्रयास गर्नु is the answer you are looking for!
Answer:
not a question. Or did you just do it to teach people
I learnt that calling someone a dirty rat could mean something nice (A nice person that never showers)
The switching from old gas guzzlers to more fuel-efficient cars is an example of substitution effect.
Substitution effect is the switching of customer from a more expensive product to a cheaper product. This is usually because of an increase in price or a decrease in the customers income.
Substitution effect can be positive for consumers if they can continue to by the products they like. Also, this effect can be negative for consumers if it results in fewer choices of that product or products of lower quality.
Find out more at: brainly.com/question/22079450
