This physical feature has separated ethnic groups in the balkans. 1. iron gate 2. mountains 3. plate tectonics 4. steppes

Suggest two reasons why irrigation is important for human development of the desert (4 marks)

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

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.