What is found inside of ice core samples that scientists use to determine the composition of the atmosphere at the time the ice was formed?

A. Dust particles

B. Ions

C. Gas bubbles

D. microbes

Respuesta :

A. and C.

Explanation:

Ice cores contain evidence of trace elements, gas bubbles, dust, pollen, even viruses and bacteria that can be traced back in time to yield vivid images of Earth's history and prehistory for those who learn to read them.

Answer:

C

Explanation: