HYDROPONICS - VOCABULARY

The upper layer of earth in which plants grow, a black or dark brown material typically consisting of a mixture of organic remains, clay, and rock particles.

• crop

• soil

• nutrient

There is not much of something.

• crop

• scarce

• rack

The soluble minerals required by plants to grow.

• soil

• crop

• nutrient

Plants such as wheat and potatoes that are grown in large quantities for food.

• rack

• crop

• nutrients

Absolutely necessary; extremely important.

• economical

• scarce

• essential

A framework, stand, or grating on or in which articles are placed.

• crop

• rack

• soil

Giving good value or return in relation to the money, time, or effort spent.

• essential

• economical

• scarce

Involving or relating to the buying and selling of goods.

• essential

• commercial

• rack