Define fungicide.

Explain the following statement- Bordo mix is a fungicide.

_______________ is a mixture of solution of copper sulphate and lime which is used as fungicide.

Describe the following statement- Zinc sulphate heptahydrate is used as fungicide.

Explain the following statement- A fungicide is made up of by the mixture of solution of copper sulphate and calcium oxide.

Which one of the following is linked to the discovery of Bordeaux mixture as a fungicide ?