Which statements describe erosion? 1. the process of erosion creates soil. 2. the process of erosion moves soil. 3. people's activities have no effect on erosion. 4. erosion is a natural occurrence. 5. erosion can be harmful to the environment. 6. erosion can have a negative impact on people's activities. 7. erosion can benefit the environment. 8. erosion can have a positive impact on people's activities. (you can choose more than one! )

What is the difference between external & internal migration

Based on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m? question 2 options: 500 m 600 m 400 m 750 m

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.