Question

identifying the limitations of models in science
what might be one limitation of using a greenhouse as a model to represent a large farm?
a greenhouse is a controlled environment, and a large farm is not.
a greenhouse is not exposed to the same weather patterns as a large farm.
a greenhouse has a water system that can be controlled by the farmer.
a greenhouse has more pests than a large farm.

Explanation:

• Option A: Greenhouses are controlled (temperature, humidity, etc.), while large farms are in the open (uncontrolled). This difference limits using a greenhouse as a model for a large farm.
• Option B: Greenhouses shield plants from external weather (e.g., rain, wind, extreme temperatures). Large farms experience natural weather. This lack of exposure to the same weather patterns is a limitation.
• Option C: Having a controllable water system is a feature, not a limitation for using a greenhouse as a model.
• Option D: Generally, greenhouses have fewer pests (due to controlled access) compared to large farms. So this option is factually incorrect.

Answer:

A. A greenhouse is a controlled environment, and a large farm is not.
B. A greenhouse is not exposed to the same weather patterns as a large farm.