Question

they are breeding grounds for the germs (change the voice ​

Answer 1

Answer:

they are breeding ground for the germs change into which language

Answer 2

1.COUNTABLE NOUN [usually singular]If you refer to a situation or place as a breeding ground for something bad such as crime, you mean that this thing can easily develop in that situation or place.Flaws in the system have created a breeding ground for financial scandals. [+ for]

2. COUNTABLE NOUNThe breeding ground for a particular type of creature is the place where this creature breeds easily.

where this creature breeds easily.Warm milk is the ideal breeding ground for bacteria.