The provided question was incomplete as it lacks the options. However, the correct option for this question is as follows:
an electronic balance to measure the volume of soil in which each corn plant is grown
a graduated cylinder to measure 30 mL of water for each plant daily
a metric ruler to determine the mass of each plant each week
a Celsius thermometer to determine the pH of the soil
Answer:
The correct answer is - a graduated cylinder to measure 30 mL of water for each plant daily
Explanation:
The basic knowledge requires to answer this question, as it is not asking about the photosynthesis or temperature of the air but the tool which is correctly matched, so let's get the answer from the options:
the first option is talking about the electric balance and measuring the volume of soil with it, as wee know electric balance measures mass or force on the pan downwards which is the mass of the substance. so it is an incorrect match.
Graduated cylinder to measure the 30 ml water which is correct as this tool measure volume of liquid or substance.
A metric scale measures distance or length of an object, not the mass thus, it is an incorrect match.
A thermometer measures the temperature, not the pH of a substance so it is also an incorrect match.
