Get Dirt The Movie Answer Key

Having good biodiversity in the soil helps turn old plant residues into food for new plants. It is all of the living things in the soil that makes it able to do the things that we expect soil to do. In this way, soil is truly a living system, not just dirt. Dirt is dead, soil is alive!

Three examples of practical application of the mud/dung mixtures would be fertilizer, pottery, and building.

Dirt is considered living because it is constantly changing and full of living materials. They also strip the soil of nutrients. 2. What happened in the back of Clyde's pickup truck while he was in the hospital?

Why is dirt considered living? Mycelium is an interface organism between life and non-living, as it decomposes wood, it creates soil. Explain how the fungus mycelium makes dirt in a forest. Cows and similar animals are able to consume and recycle parts of plants that humans cannot, returning key nutrients to the soil.

Soil is a living thing – it is very slowly moving, changing and growing all the time. Just like other living things, soil breathes and needs air and water to stay alive.

Excess nitrogen and phosphorus cause an overgrowth of algae in a short period of time, also called algae blooms. The overgrowth of algae consumes oxygen and blocks sunlight from underwater plants. When the algae eventually dies, the oxygen in the water is consumed.

Some pioneer plants will quickly take hold, gradually changing the landscape—how much the ground is shaded and the soil composition—such that a new set of plants will thrive there. This in turn creates yet another set of conditions that eventually allows for the return of the forest.

Soil is a living system because it comprises of living organisms such as plants and animals. In addition it also consists of fungi, protozoa, bacteria and other microorganisms. Presence of organic substances indicates the robustness of the soil. Generally five factors determine the quality.