Question

a farmer planted corn in two different fields. he planted 500 seeds of regular corn in field a and 500 seeds of experimental corn in field b. at harvest time, more ears of corn had grown in field a than in field b. the farmer concluded that more corn grew in field a because of the type of corn planted.
choose two other possible variables that could have caused more corn to grow in field a.
a. the type of soil in the field
b. the cost per ear of the corn
c. the flavor of each type of corn
d. the amount of sunlight in each field
e. the amount of corn planted in each field

Explanation:

To determine other variables affecting corn growth, we analyze each option:

• Option A: Soil type (e.g., nutrient - rich vs. poor soil) impacts plant growth. Different soil in Field A could support more corn.
• Option B: Cost per ear is related to economics, not growth factors. Eliminate.
• Option C: Flavor of corn doesn't affect how much corn grows. Eliminate.
• Option D: Sunlight is essential for photosynthesis. More sunlight in Field A could lead to more growth.
• Option E: The problem states 500 seeds were planted in each field, so this is not a variable here. Eliminate.

Answer:

A. the type of soil in the field, D. the amount of sunlight in each field