which technology measures climate change?\na. weather balloons released into the upper atmosphere\nb…

Brief Explanations:

Ice core samples can preserve gases from past eras. Chemical analysis of these trapped gases reveals information about historical atmospheric composition and temperature changes, which are key aspects of climate change. Weather balloons mainly measure short - term upper - atmosphere conditions, daily temperature recordings by thermometers are short - term and local, and monthly air pressure measurements by barometers don't directly measure climate change.

Answer:

B. chemical analysis of gases trapped in ice core samples