Question

cambrian web quest
what caused the end of the cambrian period?
advancing glaciers and dropping temperatures
volcanic activity and rising temperatures
meteors and alien invasions
shifting continents and volcanic eruptions

Explanation:

The end of the Cambrian Period was marked by significant environmental changes. Advancing glaciers and dropping temperatures are well - documented factors that led to the end of this geological period. Volcanic activity and rising temperatures are more associated with other geological events. Meteors and alien invasions are not scientific explanations for the end of the Cambrian Period. Shifting continents and volcanic eruptions do not accurately describe the main causes of the end of the Cambrian Period as compared to glacial advancement and temperature drop.

Answer:

Advancing glaciers and dropping temperatures