Материалы по тегу «pandemic covid-19»
What Effect Does COVID-19 Have on Our Lungs? Explains Pulmonologist, Corresponding Member of the Russian Academy of Sciences Sergey Avdeev
The COVID-19 pandemic is causing people to leave big cities
Новый выпуск — №11 2021
«В мире науки»
What saints did the conquistadors pray to and why did they decide to conquer Mexico? What was the ethnic, regional, and age composition of the Conquista?