Answer:
Option 1 is correct.
Explanation:
There are two types of externality:
(i) Negative externality
(ii) Positive externality
Negative externality:
Suppose there is an economic transaction initiated between the two partners and this transaction reduces the consumption of third person, then this is known as the negative externality.
For example: Smoking is one of the example of negative externality. Smoking a cigarette is not only present in the consumption bundle of a person who smokes but it also affects the health of the other person who stands near that person. So, it reduces the consumption of non smoker.
Answer:
TRIANGULAR SCALES A tool generally used when reproducing a drawing in an enlarged or reduced for to some regular proportion. Its main function is to reproduce the measurements of an object in full size, reduced size, and enlarged size.
Explanation:
I hope it helps..
