It is defined as the process of separating suspended solid matter from a liquid, by causing the latter to pass through the pores of a membrane, called a filter.
It is used to separate insoluble solids from a liquid.
For example, a mixture of sand and water can be separated by this method.
While preparing tea, a filter (commonly a strainer) is used to separate tea leaves from the tea.
Hence, we will use filtration to separate tea leaves from tea.