Which tool gives scientists information about the wind speed and humidity of a region?

A weather station

Explanation:

A weather station measures the wind speed and humidity of a specific area. GIS gives visual data that scientists can analyze, GPS gives the exact location of a weather phenomenon, and a hammer and lens allow scientists to study Earth’s geologic features.

a:

by the combination of an unlimited number of elements

you need to have a picture of the atom that way we can answer it