RI NGSA Science Grade 5 Practice Questions - Rhode Island Next Generation Science Assessment (NGSA), Grade 5 Exam

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A scientist grows lettuce plants in a hydroponic setup where roots sit in liquid water with dissolved nutrients, with zero soil present. The lettuce grows large and healthy. What claim does this evidence support?

Soil is not an essential requirement for plants as long as they receive air, water, nutrients, and light. Plants do not need water if they are grown in light. Hydroponic plants get all of their carbon mass from water molecules alone. Soil is the main provider of mass for terrestrial plants.

Correct Answer:

Soil is not an essential requirement for plants as long as they receive air, water, nutrients, and light.

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