II - For each item below, determine which is the independent and dependent :
1. A study was done to find if different tire treads affect the braking distance of a car.
IV:
DV:

2. The time it takes to run a mile depends on the person's running speed.
IV:
DV:

3. The height of bean plants depends on the amount of water they receive.
IV:
DV:

4. The higher the temperature of the air in the oven, the faster a cake will bake.
IV:
DV:

5. Lemon trees receiving the most water produced the most lemons.
IV:
DV:​​