The change in life-forms in the fossil record from less complex organisms to more complex organisms over time is best explained by

(1) extinction

(2) evolution

(3) dynamic equilibrium

(4) original horizontality

What factors contribute to the great variety of climate zones in Latin American

Which statement best describes Africa's economy?

If earth rotated twice as fast as it currently does, but its motion around the sun stayed the same, then

What factors make it difficult for Eastern Europe to improve its water quality? Select all that apply.

16. Which one of these is NOT a dwarf planet? A) Pluto B) Charon C) Eris D) Mercury

Question: Which best describes Antarctica? Answers: A. It has a population of about two million people. B. It is a desert. C. It is a territory of the United Nations. D. It has ice on about 10 percent of its surface.

Which of the following is a belief of Judaism? A. Salvation comes only to those who practice rituals. B. A prophet wrote the direct words of God into a sacred text. C. The Gospels were written by the disciples of a savior. D.

The planetarium is not crowded on Wednesdays, so we should visit it then. Is this sentence an appropriate opening sentence for the purpose of the argument?

What three livestock were sent from the Americans to Europe

Greenhouse effect compare and contrast with global warming