What are the different evidences of an ice age?

Evidence of an ice age includes glacial landforms like moraines and drumlins, sediment layers containing glacial debris, and changes in sea level due to the formation of ice sheets. Additionally, the presence of glacial striations on bedrock and the distribution of erratic boulders are also indicative of past ice ages. Climate proxies like ice core records showing fluctuations in temperature and atmospheric composition further support the occurrence of ice ages.