What is a strategic mineral? question 3 options: a)one that is exported from the united states b)a nonmetallic resource c)one that must be imported to the united states d)one that is easily removed from the ground

Metamorphic rocks are formed when sedimentary or igneous rocks are subjected to heat or pressure and recrystallize without melting. which of the following rocks results from the metamorphism of limestone? a. granite b. slate c. sandstone d. marble

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.

Which chemical equation is unbalanced? which chemical equation is unbalanced