Settlements developed along the Nile River because . A.
gold mines were discovered along the banks of the Nile
B.
tribal warfare pushed people out of the Sahara Desert
C.
the Sahara region dried out after the last Ice Age
D.
unseasonably cold weather forced people north from central Africa

Identificar audio textbook you will hear a series of words. based on the contextos illustration and your knowledge of the vocabulary, write each word you hear in the appropriate category.

As with any small island country, cuba has fewer natural resources than countries such as brazil. this affects their economy in that cuba a) exports only manufactured products. b) exports more products than it imports.. c) must import more products than it exports. d) has imposed trade barriers against the united states.

Why is this statement not a hypothesis? sunflowers require soil and plenty of sunlight and water to grow and thrive. a. it is a well-known fact. b. it is a proven theory. c. it is not falsifiable. d. it is difficult to test.