What type of instruments have been used to measure the depth of the mantle

Describe the cultural component "innovation." give two examples. give an example of the cultural component "cultural universals."

Samantha is looking for a boyfriend. based on the gender differences explained in this activity, which is she likely to prefer?

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.