Refers to the average increase in the earth's temperature, which causes changes in climate.
a. climate change
b. the ozone melt
c. global warming
d. the greenhouse effect

3. lithuania, latvia, and estonia all signed a peace treaty with germany in 1996 signed a pact with russia in 1996 were admitted to the european union in 2004 were damaged by the chernobyl explosion in 1986

Which of the following is typically not a characteristic of a foraging society? a. foraging societies are nomadic groups. b. foraging societies consist of small groups with ties based on kinship. c. individuals in foraging societies have few personal possessions. d. foraging societies have formal social and class structures

Given: circle a externally tangent to circle b. how many possible common tangents to circles a and b can exist? 2 3 4