Why did large numbers of africans migrate to the americas? a. countries competed over resources during the age of exploration, and many african explorers sailed to the new world in search of riches. b. large numbers of africans were forcibly taken to the americas during the slave trade. c. large numbers of africans came to the americas to find employment and to work on the railroads. d. africans crossed the land bridge from asia to alaska during the ice age.

Hich of the following best summarizes the text’s depiction of the ancient indus valley cities (namely harappa and mohenjo-daro)? a. the cities were very plain and simple; the people did not focus on art and architecture, devoting their time instead to agriculture and the bare essentials. b. the cities were adorned, or decorated, with almost overwhelming displays of wealth and artistic architecture. c. the cities were extremely clean, relying on an advanced water and sewer system, though this was mainly constructed for the innermost areas of the cities. d. the cities were clean and peaceful, and they were designed in an extremely organized fashion, using an advanced water and sewer system to keep them this way

Explain why components that are naturally found in air can be considered air pollutants.

Rocks that contain crystals that are roughly equal in size and can be identified with the unaided eye are said to exhibit a texture.