What is the primary purpose of a rain gauge in scientific studies?

• A. To measure the amount of precipitation over a period of time
• B. To record wind speed and direction
• C. To analyze soil composition
• D. To determine the temperature of the atmosphere

Answer: (A)

Verified step by step guidance

1. Step 1: Begin by identifying the key term in the question, which is 'rain gauge.' A rain gauge is a scientific instrument used in meteorology.
2. Step 2: Understand the function of a rain gauge. It is specifically designed to measure the amount of precipitation, such as rain, over a specific period of time.
3. Step 3: Eliminate the incorrect options by matching the function of a rain gauge to the choices provided. For example, recording wind speed and direction is done by an anemometer, analyzing soil composition is done by soil testing kits, and determining atmospheric temperature is done by a thermometer.
4. Step 4: Focus on the correct option, which aligns with the purpose of a rain gauge: 'To measure the amount of precipitation over a period of time.'
5. Step 5: Conclude that the primary purpose of a rain gauge in scientific studies is to measure precipitation, as this is its specific and intended function.