This type of carbon contains hydrogen and is found in living things.

Nitrogen must be in this form to be used by plants.

Some examples are dandelions, rats and bacteria

A collection of ecosystems which have similar plants and animals and share common soil type and climate.

This soil layer is made of solid rock

This type of carbon does not contain hydrogen and is found in non-living things.

The process by which nitrogen from the atmosphere, dead organisms, and urine/feces is made available to plants in a form they can use.

A chemical designed to kill pests

This ecosystem's main plants are grasses

This soil layer is made of partially decayed plants and animals

The process by which plants produce food using carbon dioxide and energy from the sun.

The process by which Nitrogen gas (N2) is removed from the atmosphere and turned into Nitrates.

A type of farming that does not use traditional pesticides or synthetic fertilizers

This ecosystem's main plants are deciduous trees

This soil layer has the most nutrients

The process in which animals combine oxygen and sugar to release energy, carbon dioxide and water.

The process by which bacteria change Ammonia into Nitrates

The scale used to measure how basic or acidic something is

This ecosystem's main plants are coniferous trees?

This soil layer has more rocks and less organic material than topsoil

The way in which carbon changes form and is recycled within an ecosystem.

The process by which bacteria converts left over Nitrates into N2 gas and releases it into the atmosphere.

A pesticide designed to kill plans

This ecosystem's main plants are mosses and lichens

Occurs when water dissolves and takes nutrients from the soils.