The gazelle travels 2 km in a half hour. The gazelle's average speed is: 1/2 kmh
1km/h
4km/h​

distance =2km

time =1/2hour

speed =distance /time =2/1/2=4km/h

it is because acrylic blanket have acrylic textile fiber

explanation:

its is better than wool blanket

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.