Science true or false

State whether the following statements are true or false:

1. Bread is an example of solid foam.

2. Sponge is an example of solid sol.

What type of colloids are bread and sponge?

Name one pair of liquids which can be separated by using a separating funnel.

State whether the following statement is true or false:

Milk is a pure substance.

State whether the following statements are true or false:
Alcohol can be separated from a mixture of alcohol and water by a separating funnel.