When did the rise of the Songhai Empire occur? A. 1076 CE B. 1240 CE C. 1400 CE D. 1591 CE Please select the best answer from the choices provided

Blank is a naturally occurring gas that's found in most soils and rocks and can cause lung cancer

Which of the following statements best characterizes changes to agriculture in the united states since 1900? a. increased mechanization has reduced the need for labor.b. increased mechanization has increased the need for water, thereby increasing the need for labor.increased mechanization has increased the use of land, thereby increasing the need for labor.d. increased mechanization has increased food production, thereby increasing the need for labor. select the best answer from the choices provided.

The declining axolotl population in mexico city is an example of in overcrowded cities. a. the surpassing of support capacity b. changes to natural environments and native species c. the lack of safe homes and tenured spaces d. the effects of a growing urban heat island