"Search and write the nationality and language spoken by ten of the following leaders."
This means you are being asked to find information about ten leaders and write down their nationality and the language they speak.
To complete this task, you'll need to be provided with a list of leaders.
For example, you might be given a list of:
* Nelson Mandela
* Mahatma Gandhi
* Queen Elizabeth II
* Barack Obama
* Angela Merkel
* Vladimir Putin
* Xi Jinping
* etc.
Once you have the list, you can search for the nationality and the language spoken by each leader and write them down.