Question

Isobars can be used for
A. Meteorology
B. Weather
C. Both a and b
D. None of the above

Answer 1

Hint: Isobars are basically used to measure and find out the areas of low or high pressure over a broad area. These are generally used on maps to know atmospheric pressure of a certain area and rest you know what is the term used for the study of a weather.


Complete step by step solution:
The word iso means “equal” and bar means “lines”. So, isobars are lines on a weather map that joins two places having equal atmospheric pressure. The number usually measures the atmospheric pressure in millibars. Generally, three isobars are drawn at intervals of two or four millibars.
The important point to remember is that, closer the isobars, windier is that place. So, in a map, if there is the lowest number in the middle circle, that place is considered to be having low pressure or depression. Often low pressure means wet and windy weather. If the middle circle has the highest number, then it refers to high atmospheric pressure or anticyclone. And, often high pressure means dry, sunny weather. Once, the air pressure is measured, it can be plotted on a map. Points of equal pressure can be connected with a line and these lines are nothing but referred to as isobars.
As we can see, isobars give information about weather indirectly. Thus, isobars can also be used to study the weather condition of a place. And, we know the term used for describing the study of weather is “Meteorology”.
So, isobars are used to study the weather of a given place and the study of weather is called meteorology.
Thus, both the options will be correct.

Hence, the correct option will be C.


Note: Generally, isobars indicate the relationship between different chemical elements but having the same atomic mass and thus the respective elements will have the same physical properties. The term itself defines lines that are the same in nature.