Are the following sentences active or passive voice?

Over $1 billion is paid in state taxes by citrus growers.
High-protein foods are preferred by people on low-carb diets.
My citrus fruits are grown in Florida.
With the growing popularity of low-carb diets, however, these products have fallen into disfavor.
Over ninety thousand people are employed in the citrus industry.
Growers and processors have always promoted citrus fruits and juices as healthful foods.
The citrus industry contributes $9 billion per year to the state’s economy.
Another way to promote their product is needed by florida citrus growers.
Growers produce oranges, grapefruit, tangerines, and other citrus fruits.
The tourist industry employs more people in Florida.