(Q).
Question: this object appears to have less mass because it is more lightyears away (A) the moon (B) Sirius Do not use A and B to answer the question but instead, choose between "Sirius" and "the moon".
(A).
the moon

(Q).
Question: Sliding a hair brush across a sandy floor makes the brush heat up less then sliding it across a gritty floor. This means the _____ is the smoothest surface (A) sandy floor (B) gritty floor Do not use A and B to answer the question but instead, choose between "sandy floor" and "gritty floor".
(A).
sandy floor

(Q).
Question: Penelope noticed that her hand got hot when she moved it quickly back and forth over the carpet, but that it didn't get very hot when she moved it over the tile. She realized that there's more friction in the (A) carpet (B) tile. Do not use A and B to answer the question but instead, choose between "carpet" and "tile".
(A).
carpet