Which of the following is true of clouds at medium altitudes?

a. they are a sign of severe weather.
b. they generally produce lightning.
c. they are made of ice crystals.
d. they cause light rain and snow.

Gemstones are commonly found in pegmatites, which are igneous rocks that are a. exceptionally mafic b. exceptionally coarse grained c. exceptionally fine grained d. extrusive, forming from lava

One of the main reasons the united states occupied japan after world war ii was that

Canada plays an important role in the global community in all of the following ways except by a. acting as a superpower with influence over europe and asia. b. promoting arms control and disarmament. c. working with the commonwealth of nations to promote trade. d. promoting trade with japan and other asian countries.