Identify the true statement. choose one:
a. biochemical sedimentary rocks are crystalline in texture.
b. flint, jasper, agate, and petrified wood are all varieties of the siliceous rock travertine.
c. gypsum and halite are evaporite minerals.
d. chert has only a biochemical origin.

C. Gypsum and halite are evaporite minerals.

Explanation:

Evaporite minerals are mineral that can dissolve in water formed from sediment concentration and crystallization by evaporation from an aqueous solution.

Example of Minerals in evaporite rocks include carbonates (which includes: calcite, dolomite, magnesite, and aragonite), sulfates (which includes anhydrite and gypsum), and chlorides (such as halite and sylvite), and also various borates, silicates, nitrates, and sulfocarbonates.

the aksumite empire was an ancient kingdom located in what is now northern ethiopia from the period of 100 ad to 940 ad. its capital was the city of aksum. the kingdom established itself as one of the 4 great powers at its time, along with persia, rome, and china.

the kingdom was rich in goods like gold, iron, and salt. it established strong commercial ties with the regions governed by rome, egypt, and persia (arabia). aksum was a key location in this commercial network. trade was also facilitated with the introduction of the aksumite currency.

your answer is rising unemployment and inflation.