What theory argues that an asteroid that crashed into the earth near the yucatan peninsula caused the k-t extinction?
a. alvarez theory
b. descent theory
c. isthmus theory
d. vestige theory

The prevailing climatic type in the southeastern part of the usa, western europe, southern brazil and northen argentina is the mid-latitude or: a)humid temperate b)humid cold c)semiarid moderate dry d)summer savanna.

Which modern technology has not made a great difference in the inuit way of life?

Como se presentan los personajes de cunshi y su pequeño hijo? describe a cada uno de ellos