According to jean piaget, around age 11, the fourth stage of cognitive development, the stage, begins. a. formal operational b. passive operational c. postoperational d. concrete operational

The red arrow shows the direction that wind from the south pole would travel if earth were not spinning. the wind's destination is at point a. because earth is spinning in the direction shown by the blue arrow, the coriolis effect will cause the wind to terminate closest to which point?

Which factor contributed to the rise of african empires such as ghana and mali ? a. their creation and involvement in trade networks b. they focused only on agricultural production. c. they didn’t engage in warfare with other nations d. their geographic location protected them from attacks.

Brazil trades with the united states more than it does with any other country. industrially, the private sector has made brazil one of the most advanced countries in latin america, with massive investment taking place since 1996. still, over 1 million people live in state-owned housing and millions more are covered by government operated health care. these facts show that brazil has a a) mixed economy. b) market economy. c) command economy. d) traditional economy.