Air pollution may be due to:
These materials can be measured by various monitors using samples taken at the site and measured by:
Noise pollution involves sound measurement of:
The name of this instrument is anemometer.
Spirograph
Timepieces.
The instrument used to measure the volumes of liquids are many as follows ..they are : beaker ,burette,pipette,etc.
Barometer.
thermometer
CLOCK
A contraction
heart diseases, ulcer, stress, and deafness
I'm guessing - from the name - that it excedes local laws on noise pollution !
its called mk meter!?
a rain gawge