A rock containing iron has been chemically weathered by if it becomes soft and crumbly and reddish brown in color. A. abrasion
B. carbon dioxide
C. oxygen
D. acid rain

What do the capital cities of lebanon, kuwait, qatar, united arab emirates, and oman have in common? they are all inland cities. they are all coastal cities. they are all have “stan” in their names.

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.

Solve for r in the formula v = ir, when i = 5 and v = 15.