Final answer:
The given list has 4 rows and 2 columns.
Step-by-step explanation:
The given list numbers = [[1, 2], [10, 20], [100, 200], [1000, 2000]] is a two-dimensional list.
In this case, the number of rows represents the number of sublists in the list, and the number of columns represents the number of elements in each sublist.
Therefore, the list has 4 rows and 2 columns.