What gas do plants take in during photosynthesis?
What is carbon dioxide?
What is the layer of soil that contains the most organic matter and nutrients?
Topsoil
What invention allowed farmers to plant seeds faster and more evenly?
Seed drill
What do we call animals that eat only plants?
Herbivores
What is the main food crop grown in tropical climates like Brazil and Indonesia that is used for cooking oil?
palm oil
What plant structure moves water from the roots up through the stem?
Xylem
What is the process called when water or air carries soil away from an area?
Erosion
What tool do farmers use today that uses satellites and computers to plan planting and fertilizing?
GPS technology / precision agriculture
What do we call an environment where plants and animals interact with each other?
ecosystem
What is the largest exported agricultural product from the United States?
soybeans
What part of the flower produces seeds after pollination?
Ovary
What natural resource forms soil over thousands of years through weathering of rocks?
Bedrock
What machine separates grain from the stalk after harvesting?
Combine or thresher
What type of insects are essential to crop pollination and help produce one-third of our food?
bees
What protein-rich grain from South America is known as an “ancient grain”?
quinoa
What is the name of the tiny openings on leaves where gases enter and exit?
Stomata
What is the term for the mixture of sand, silt, and clay that is best for agriculture?
Loam
What is the name of the practice of rotating different crops in a field each year to protect soil?
Crop rotation
What is the process of selecting the best animals to breed for desirable traits?
selective breeding
What term describes a food grown and eaten during its natural growing season in a local area?
Seasonal food
What type of plant reproduction happens without seeds, using runners, bulbs, or cuttings?
Asexual reproduction (or vegetative propagation)
What is the term for tiny living organisms in soil that help break down matter and improve soil health?
Decomposers (like bacteria and fungi)
What is the term for growing plants in water without soil, often indoors?
Hydroponics
What is the term for animals that help control pests naturally without chemicals?
biological control agents
What is the name of the United Nations agency that fights world hunger and supports agriculture?
FAO (Food and Agriculture Organization)