Which sources do scientists use to study ancient climates? check all that apply. earth’s orbit tree rings volcanoes pollen grains fossils

Quick i have a question on my exam review and i have my exam tmr. how does the taiga region change as your cross canada. make sure it’s canada!you : )

This map shows the member states of the european union (eu). based on this map, what is the most likely reason the eu was formed? a) to increase trade between european nations b) to protect themselves from foreign enemies c) to begin the process of forming one large nation d) to isolate europe from the rest of the international community j

Ray lo bisects nlm, lm=18, no=4, and ln=10. what is the value of x?