18.Capillary tubes of different diameters are depicted. if all of them are partially immersed in water,

a. In which one will be the rise in level maximum

b. Write down the relation between the capillary rise and diameter of the tube ?

C. Which force is responsible for capillary rise ?

D. Write down an example for liquid that shows capillary depression​

Long ago, people who lived in coastal north africa most often interacted with

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.

Which year held a congressional election and a presidential election