Where is the sun's rays the most intense ? (a) the poles
(b) the tropics
(c) the "horse latitudes"
(d) none of the above

Is water wet? and is fire on fire?

In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d

Which statements describe characteristics of mdcs? higher standard of living increased agricultural focus more access to health care more access to transportation and communication more industry reduced educational opportunities shorter life expectancy