Question

which pieces of information does the national weather service produce?
simple maps
newspaper maps
long - range forecasts
maps with isotherms

Explanation:

The National Weather Service is responsible for producing detailed weather - related information. Isotherms are lines on a map connecting points of equal temperature. The National Weather Service creates maps with isotherms as part of their meteorological data presentation. Simple maps and newspaper maps are more general - purpose and not specific to the detailed meteorological data that the National Weather Service focuses on. Long - range forecasts are not the main product in terms of the map - related aspect here, and maps with isotherms are a key output for showing temperature patterns which is relevant to their meteorological work.

Answer:

maps with isotherms