Who Needs Dirt?

The video explores how plants obtain necessary resources to survive, emphasizing that dirt is not essential. It explains the roles of plant organs—roots, stems, and leaves—in acquiring light, water, carbon dioxide, oxygen, and nutrients. The video introduces hydroponics as a method to grow plants without soil, highlighting its benefits in nutrient-poor environments.

What is the role of dirt in plant growth according to the video?

• Dirt provides all necessary nutrients for plants.

• Dirt is the most important resource for plant growth.

• Dirt is the only source of water for plants.

• Dirt is not essential for plant growth.

Which organ in plants is primarily responsible for photosynthesis?

• Flowers

• Leaves

• Stems

• Roots

What gas do plants need for photosynthesis?

• Carbon Dioxide

• Oxygen

• Nitrogen

• Hydrogen

How do stems contribute to a plant's survival?

• They transport water and nutrients.

• They anchor the plant in place.

• They produce seeds.

• They absorb sunlight.

What is hydroponics?

• A way to grow plants using only sunlight.

• A method of growing plants in soil.

• A technique of growing plants without soil.

• A process of breeding plants for better yield.