Match the items on the right to the items on the left.

2	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
K	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
B	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
E	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
10	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
3	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
4	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
6	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
7	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
H	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
1	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
8	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
9	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
A	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
J	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
D	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
G	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
R	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
5	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
12	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
I	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
O	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
F	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
N	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
M	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
L	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
P	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
Q	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
11	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande
C	??? Lake Huron Ohio River Sierra Nevadas Lake Ontario Canadian Shield Rocky Mountains Columbia River Yukon River Lake Michigan Lake Erie Great Plains Great Basin Lake Superior St. Lawrence River Cascade Range Greenland Pacific Ocean Atlantic Ocean Arctic Ocean Gulf Coastal Plain Colorado River Missouri River Coast Range (Pacific) Hawaiian Archipelago Appalachian Mountains Hudson Bay Aleutian Islands Mississippi River Gulf of Mexico Rio Grande