Which of the Following Experiments Is the Best Way to Determine

question 12

Multiple Choice

Which of the following experiments is the best way to determine if an element is essential for plant growth?

• A) Measure the amount of the element stored in plant tissues.
• B) Measure the amount of the element in the soil after plant growth.
• C) Measure the weight of the plant and soil before and after plant growth.
• D) Grow a plant using hydroponics with and without the element.

---

Definitions:

Nonmetallic Mineral

Minerals that lack metallic properties, often used in construction and manufacturing, such as sand, gravel, and precious stones.

Phosphates

Mineral salts containing the phosphate ion, used in fertilizers, detergents, and as a dietary supplement.

Gangue

The valueless minerals or rock that are mined along with valuable minerals or ore, typically disposed of as waste.