Question

why are forecasters able to make more accurate predictions about the weather when using electronic tools?
a wide variety of devices can be used to collect weather data from many places.
weather data come exclusively from different weather stations in one region.
data fed into a supercomputer accounts only for select processes that occur on earth.
scientists must input several pieces of weather information into a computer system.

Explanation:

Weather prediction accuracy depends on comprehensive data. A wide - variety of devices (like satellites, weather balloons, ground - based sensors) collecting data from multiple locations (not just one region as in option B) gives a more holistic view. Option C is incorrect as supercomputers consider many Earth processes. Option D is a general statement but doesn't explain accuracy like option A which emphasizes the source and variety of data collection.

Answer:

A. A wide variety of devices can be used to collect weather data from many places.