LIST I | LIST II | ||
---|---|---|---|
A | Solarimeter | I | wind velocity |
B | Anemometer | II | flow of liquid |
C | Thermocouple | III | solar radiation |
D | Venturi tube | IV | temperature |
The North Atlantic Treaty Organization (NATO) has got its $31^{st}$ member nation ____ on $5^{th}$ April 2023.