I just wanted to make sure my answers are correct, Can you check it please?

Find an example of an area of land that is smaller than a continent and is completely surrounded by water. What term is used to describe this type of land? An example is Jamaica. The term that is used is an island.
2. What is the name of the imaginary line 180 degrees east and west of the Prime Meridian where the date becomes one day earlier to the east of the line? The International Date Line

Both are correct, yes.

Sure! Let me check your answers:

1. Yes, you are correct! An area of land that is smaller than a continent and is completely surrounded by water is called an island. Jamaica is a great example of an island.

2. Absolutely! The imaginary line 180 degrees east and west of the Prime Meridian, where the date changes by one day, becoming one day earlier to the east of the line, is indeed called the International Date Line.

Well done on both answers! They are both correct. If you have any more questions or need further clarification, feel free to ask!