1point
two people are paddling a canoe downstream with a speed of 4 km/h relative
to the river. if the river is flowing at 17 km/h, how long will it take them to
reach the canoe dock 25km away?
o a. 1.5 h
o b. 1.9 h
o c. 1.26
o d. 0.8 h

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.