Answer:
1. rise
2. difficult
3. fall
4. equilibrium
5. upward
6. downward
Explanation:
When the demand for workers increases, it would lead to rise of demand over supply. When there's excess of demand over supply, there is an upward pressure on wages and wages would rise.
When employers find it difficult to find workers, there would be an excess of demand for workers over supply. This would lead to an increase in wages.
When there's excess supply over demand, there would be a downward pressure on wages and wages would fall. The fall in wages would discourage labour and some would leave the industry, the supply of labour would fall until the quantity of labour demanded and supplied becomes equal. The point at which quantity demanded and supplied of labour becomes equal is known an equilibrium.
I hope my answer helps you.