Unit 1

3. The ability to stay alive and continue living.
4. A person who works with farming or animals.
7. To eat or use something.
8. Effect: The spreading effect of one action.
12. The number of living things in a certain area, like animals or plants.
13. Varieties: Different types of seeds for planting.
16. About people and how they live together in groups.
18. Agriculture: Farming many different kinds of crops or animals.
21. An area of land that is not developed or used by people.
22. The surroundings where plants and animals live.
25. A plant or part of a plant eaten as food.
26. About money, trade, and how people use resources.
27. Written or kept information about something, like how much a farm grows.
28. Doing something in the best way, without wasting time or resources.

1. The practice of growing plants and raising animals for food and other products.
2. Agriculture: Growing crops in tall, stacked layers instead of flat land.
5. Using resources in a way that they will last for a long time.
6. Old types of plants that have been passed down through families.
9. The amount of something, like crops or produce.
10. To mix two different kinds of plants or animals to create a new one.
11. Practice: Doing things that don’t harm the environment and can be continued for a long time.
14. A specific piece of land used for farming.
15. A new plant or animal created by mixing two different ones.
17. Factor: Anything that stops something from growing or developing well.
19. People who survive by hunting animals and picking wild plants.
20. Plants grown for food, like wheat, corn, or vegetables.
23. When a seed starts to grow into a plant.
24. A group of similar plants or animals that can breed together.