A rain gauge can accurately measure the__________ without any loss due to evaporation.
A.Temperature
B.Rainfall
C.Pressure
D.None of these

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Hint: A rain gauge is an instrument which is used by meteorologists and hydrologists to collect and calculate the amount of liquid precipitation over an area in a particular period of time. It measures precipitation in millimeters.

Complete answer: -Rain gauge can accurately calculate the rainfall without any loss due to evaporation. Thus, it measures rainfall. Most traditional rain gauges have a wide funnel directing into the cylinder. They are calibrated so that one-tenth of an inch of rain estimates one inch when it collects inside. The funnel is 10 times the cross-sectional area of the tube. Rainfall as low as 0.01 inches can be calculated with this instrument. A funneled aperture of 150-170 cm is found in standard rain gauges. A graduated measuring glass is used for determining the amount of precipitation. The difference between the amount of rain collected by the manual rain gauge and the amount recorded by the rainwise tipping bucket rain gauge for the same time period should not be more than 2%. The three main jor types of rain gauge:
-The Standard Rain Gauge: The recording of rainfall using the standard rain gauge is done manually.
-The Tipping Bucket Rain Gauge: This gauge has become common for wireless weather stations.
-The Weighing Rain Gauge: These gauges are very accurate in measuring rainfall intensity as the weighing mechanism at the bottom of the collector can be used to measure both depth and time simultaneously. Recording is carried out much in the same way as the older versions of the tipping bucket gauges.

Hence, Option B is the right answer.

Note: Sejong, the Great, of Korea invented the first standardized rain gauge. Christopher Wren created the first tipping-bucket rain gauge.