| A | B |
|---|
| conservation | the wise use of natural resources |
| nutrients | material that plants and animals need to live and grow |
| silt | a fine-grained or muddy material made up of tiny particles of rock that settle at the bottom of rivers and other bodies of water |
| loam | good pianting soil that is a mixture of clay, sand and humus; holds water well and has many nutrients |
| recycle | to change something so it can be used again |
| humus | the decayed matter in soil |
| erosion | the movement of soil or rocks by wind or water |
| steward | a person who carefully uses resources |
