Science stuff

Make nutrients available to plants

Decompose organic matter and form humus

Bring nutrients up from lower areas

non-organic material from which soil develops

what a pest is when it becomes able to withstand chemicals and pestisides

when only one type of plant is grown in an area

Trees planted to reduce erosion from wind

plants grown without soil

Dark, organic matter in soil that holds nutrients

For the growth of healthy roots and leaves

For the growth pf healthy root systems

Used by the plant to produce flowers and fruits

Humus, topsoil, subsoil, weathered rock fragments, bedrock

The topmost layer in soil which is rich in humus

Used to make cotton batting, rayon, plastics and papers

Less negative effect on enviroment, can be recycled up to 7 times

Being able to grow food for fibre while keeping our natural system healthy for the long term

Parent material, climate, vegetation, landscape and time

Pistil: Stigma, style, ovary and ovules

Anther, stamen and filament

Plants that only last one year

Plant that lives for two or more years

Where molecules of a high concentration move to an are with small concentration

Movement of a solvent through a semi permeable membrane