Question

Looking at this barometer, is the air pressure high or low? What type of weather can be predicted?

Answer 1

It really depends on the altitude of the barometer.

-- If the picture was taken in Denver, Colorado, where the long-term
average atmospheric pressure is around 24.5", then this barometer
is showing slightly higher than normal, and good weather can be
predicted.

-- If the picture was taken anywhere along the east coast of the US,
where standard "sea level" pressure is 29.92", then this barometer
is reading alarmingly low !  There's either a hurricane in progress
right now, or one can be predicted to arrive very soon and you'd best
pick up your barometer and head inland as fast as you can.  

Answer 2

Answer:

B) Low, Bad

Explanation:

As we know that given scale is in inch so the height of the barometer scale here is given as

$H = 25 inch$

now we have

$1 inch = 25.4 mm$

so we will have

$H = 25 \times 25.4$

$H = 635 mm$

so at this showing position the pressure is 635 mm of Hg while at normal condition the pressure is 760 mm Hg

So this shows low pressure and bad weather