what does perplexing and and refractory mean in the sentence? Equally perplexing constituents of Allende are the refractory inclusions: irregular white masses that tend to be larger than chondrules.

what does seasonality mean in the sentence? And with that came increased seasonality, that is, the summers became warmer, and the winters actually became colder.

what does game mean in the sentence? But then at other Clovis sites, there's also a lot of evidence that the Clovis people mostly gather plants and hunted small game, like rabbits and wild turkeys.

What does compelling mean in the sentence? That would appear to be some pretty compelling evidences. Mammoth bones have also been found at some other Clovis sites.

What does allusion mean in the sentence? The Allende meteorite is classified as a chondrite. Chondrites take their name from the Greek word chondros—meaning "seed"—an allusion to their appearance as rocks containing tiny seeds.

What does matrix and "out of which" mean in the sentence. Inside Allende meteorites is a dark gray matrix that binds together small spherical or irregular objects formed from the interstellar cloud of gas and dust out of which the solar system was made.

What does crust mean in the sentence? Individual specimens of Allende are covered with a black, glassy crust that formed when their exteriors melted as they were slowed by Earth's atmosphere.

What does assortment and nebula mean? When broken open, Allende stones are revealed to contain an assortment of small, distinctive objects, spherical or irregular in shape and embedded in a dark gray matrix (binding material), which were once constituents of the solar nebula—the interstellar cloud of gas and dust out of which our solar system was formed.