(5) calculate the formula and charge of a silicate radical consisting of six tetrahedra (see the diagram), one of which is occupied by ap and the remaining five by si4+.

within these regions are all the major types of biomes in the world. a biome is a community of animals and plants spreading over an extensive area with a relatively uniform climate. some diverse biomes represented in north america include desert, grassland, tundra, and coral reefs.

are there any options you can choose from? ?

the answer is d. andesite. diorite and andesite have similar chemistries.

the other choices are wrong because:

basalt and gabbro have similar chemistries

granite and rhyolite have similar chemistries

pumice is just a rock that goes with no one

so the answer would be d. hope this