Why does adding water to sand increase the angle of repose for the material?
A) Water increases friction.
B) Water increases cohesion.
C) Water increases the oversteep angle.
D) Water decreases friction.
Answer: B
You might also like to view...
The main component of bleach is sodium hypochlorite, NaOCl, which consists of sodium ions, Na?, and hypochlorite ions, -OCl. What products are formed when this compound is reacted with the hydrochloric acid, HCl, of toilet bowl cleaner?
A) The products are NaCl, O2, and HClO2. B) The products are NaOH, H2O, and Cl2. C) The products are NaCl and HOCl. D) The products are NaOH, O2, and Cl2.
Which of the following is not a cause for hunger?
A) calorie deficiency B) protein deficiency C) nutrient surplus D) vitamin deficiency
A ____ is a pattern of wind circulation that changes with the seasons and generally results in wet summers and dry winters in parts of Africa and Asia
A) monsoon B) typhoon C) hurricane D) cyclone
The physical process of stream water alone removing pieces of rock is called ____
a. abrasion b. turbulence c. hydraulic action d. attrition