Which of the following is considered to be part of the biosphere?
a. a raindrop
b. a grain of sand
c. a rock
d. a flower

From 1990 to 2008, by what percent did the world’s most developed economies cut their greenhouse gas emissions?

Which term best describe the first spaniards in oklahoma? a) explorers b) treasure hunters c) pioneers d) settlers i need this andwer

Why did the skill of writing disappear from mycenaean society