(Q).
Question: Harry noticed that he got a much less smooth ride when travelling with his bicycle over sand than when travelling over pavement. Riding his bicycle over _____ generates less heat (A) sand (B) pavement  Do not use A and B to answer the question but instead, choose between "sand" and  "pavement".
(A).
pavement


(Q).
Question: Pat likes to eat salty snacks with sugary drinks while using the laptop. The mouse pad is sticky and bumpy with spills and crumbs. Pat uses more wrist effort to move the computer mouse over the pad. Pat places the mouse on a spiral notebook and the mouse effortlessly zigzags in all directions. The mouse generates more heat as it slides over the (A) mouse pad (B) notebook.  Do not use A and B to answer the question but instead, choose between "mouse pad" and  "notebook".
(A).
mouse pad


(Q).
Question: Ken got a flat tire on his truck near a country intersection late at night. He didn't have a spare tire and didn't have a phone to call for help. So he sat down at the corner. Finally he noticed two vehicles approaching, one from the north and one from the west. The headlights on the one from the west were very faint but the headlights on the vehicle from the north were very visible. Which approaching vehicle was closer to Ken? (A) the one from the north (B) the one from the west  Do not use A and B to answer the question but instead, choose between "vehicle from the north" and  "vehicle from the west".
(A).
vehicle from the north