7. which of the following groupings lists only minerals?
a. obsidian, gypsum, corundum
quartz, coal, basalt
b. fluorite, feldspar, copper
d. pyrite, halite, brass


small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.

bc blah


bc blah

B which is Fluoritr, Feldspar and Copper.


Minerals are said to be solid substances which are usually present in nature but can also be formed from one or two substances.

Fluorite, which is also referred to as fluorspar, is a mineral that is comprised of calcium and fluoride or calcium fluoride.

Feldspars generally are a group of rock-forming tectosilicate minerals that make up about 41% of the Earth's continental crust by weight.

Copper is an element and mineral.

Your answer is A. The answer is not B or D because brass is not yet recognized as a mineral more of an alloy, and copper is a chemical element, so A must be the answer.

( PS: where is option choice C? )

Hope this helps, if not, comment below please

Do you know the answer?

Other questions on the subject: Biology

Biology, 21.06.2019, isabelvaldez123
measuring physical properties lab reportinstructions: in the physical properties lab, you will test the physical properties of different building materials in order to pick the ap...Read More
1 more answers
Biology, 21.06.2019, u8p4
CExplanation:if the few surviving amphibians reproduce and their young ones too survives, then it is genetic drift...Read More
3 more answers
Biology, 21.06.2019, amir6658
The best option that support the evidence of this electrolysis is D.Explanation:The electrolysis of water molecule start from the separation of cations( Hydrogen ions) to the catho...Read More
3 more answers
Biology, 22.06.2019, MikeCrotch19251
when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal...Read More
1 more answers