Across
- 3. Are substances that living things need to grow, stay healthy, and get energy.
- 5. The set of practices used to cultivate the land to produce food and resources.
- 7. Means growing plants in nutrient-rich water instead of soil.
- 9. Is the total amount collected of a plant such as grain, fruit, or vegetable grown in large amounts.
- 10. Means the contamination of the natural environment by harmful materials.
Down
- 1. Are substances added to soil or plants to provide nutrients that help them grow better and faster.
- 2. Narrow channels or trenches dug into the ground, usually made to drain water, irrigate crops, or mark boundaries.
- 4. An area of land, together with a house and buildings, used for growing crops and/or keeping animals as a business.
- 6. Is the practice of supplying land with water so that crops and plants will grow.
- 8. A chemical element that is a gas with no colour or taste, forms most of the earth's atmosphere, and is a part of all living things.