| 1. |
Organic
material was once living animal and plant matter which has decayed. |
True
or False |
| 2. |
Plants
need at least ten elements for growth. |
True
or False |
| 3. |
Humus
is essential in the soil for good plant growth. |
True
or False |
| 4. |
Subsoil
is the richest layer of the soil. |
True
or False |
| 5. |
Silt
drains slower than sandy soil. |
True
or False |
| 6. |
Most
soils are made up of three ingredients -- sand, silt, and clay. |
True
or False |
| 7. |
Sandy
soil is gritty, drains easily, and is easily plowed. |
True
or False |
| 8. |
Clay
soil is called "light soil." |
True
or False |
| 9. |
Loam
is well-balanced, good-textured soil. |
True
or False |
| 10. |
The
pH scale ranges from 0, which is pure acid, to 14, which is pure lye. |
True
or False |
| 11. |
The
best level for most plants is somewhere around pH 8.5. |
True
or False |
| 12. |
Acid
soil is known as "sour soil." |
True
or False |
| 13. |
Blueberries
need alkaline soil to grow. |
True
or False |
| 14. |
Alkaline
soil can be corrected with applications of ground limestone. |
True
or False |
| (View
answers) |
