What is the chief body of water for the western United States?

Great Salt Lake

The western half of the United States is home to various bodies of water, from small tributaries to rushing rivers. The largest bodies of water, like the massive Great Salt Lake, are vital to local economies, providing visitors with a host of recreation options.

predicting long term climate trends reliably is much easier than predicting short term weather, owing to the different data sets used for each.

explanation:

answerformal;