Question

A student did an experiment with two identical plants, Plant 1 and Plant 2. About 10 mL fertilizer was added to Plant 1. About 200 mL of water was added to each plant every day. The height of the plants was recorded over a period of 5 weeks in the table shown below.

Week Height of Plant 1 (in inches) Height of Plant 2 (in inches)
1 12.6 12.6 2 13.8 12.9 3 14.9 13.4 4 15.7 13.8 5 16.6 14.6 Based on the table, which of these conclusions is correct?
Fertilizer helps plants grow taller. Fertilizer can help a plant survive for five days. Plants need more than 10 mL fertilizer to grow in size.
I choose A is it right?

Answer 1

A would be correct because the other answers make no sense since they both grew.

Answer 2

Answer A is correct

Step-by-step explanation:

This is an experiment in which both plants were with the same conditions of water and sun during the whole experiment, so the dependent variable that you want to test is the heigh, that is why is the main difference in both plants, and the independent variable is the fertilizer, is the one that you observe in your results.