Question

identifying the advantages of models in science
a greenhouse is building where plants can be grown. it has walls that allow light and air inside. the amount of water and nutrients the plants receive can be controlled.
which is the best way for a farmer to make a greenhouse a good model for testing how crops will grow in a large field?
he could remove the walls of the greenhouse.
he could put windows around the field to make it like the greenhouse.
he could recreate the soil and water conditions of the field in the greenhouse.
he could place tiny models of farm equipment in the greenhouse.

Explanation:

A model should mimic the real - world conditions it represents. Recreating soil and water conditions (Option C) makes the greenhouse a better model for the field. Removing greenhouse walls (Option A) changes its nature. Putting windows around the field (Option B) is impractical and not about the model. Placing tiny farm equipment (Option D) doesn't relate to crop growth conditions.

Answer:

C. He could recreate the soil and water conditions of the field in the greenhouse.