Which describes the horizons in a soil profile? Horizon A is mineral deficient.
Horizon O forms from organic material.
Horizon B undergoes the least amount of change.
Horizon C is most affected by the soil formation process.

Wind energy is plentiful in regions with vast open spaces it is a non polluting renewable resource what could be an economic factor that makes the use of this resource less feasible then non renewable resource even in such regions

Abnormal softening of a gland is known as

The first amino acid of a new polypeptide chain is