Cumulative Exam — Cumulative exam

Question 2 • TX-Earth and Space Science A

Why are forecasters able to make more accurate predictions about the weather when using electronic tools?

Answer

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

Electronic tools let forecasters gather weather measurements from many locations and using different devices. A broader set of observations helps them understand current conditions and make more accurate predictions. Choice A correctly describes this advantage; the other choices either restrict the data sources or do not explain why predictions improve.

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