Jan Myers creates movement in her quilts through repetition and alternation of colors. Only after looking closely do we see that, like the keys on a piano, every square in the quilt moves up a note in value. Laid over the diagonal "cylinders" of graduated color is a beige grid that appears lighter or darker, depending on the colors behind it. Our eye races across this quilt, up and down and over the rolling cylinders.
Answer is A - airbrushing
Source B is more credible because it is from a government site, so it is meant to inform. It has a quote that shows drones are in debate.
At first look, the sources seem similar. They both were written around the same period and the URL appears almost identical. However, it is important to notice that source A is from a website ending in ".net," while source B ends in ".gov." Government websites are always more credible than a website ending in ".com" or ".net." Also, source A has advertisements, which means it is mostly for entertainment. In comparison, source B has a quote from President Obama. Since the research is about the invention of drones and their controversial uses, source B is also more helpful since the title specifically mentions the rules and misuse of drones.
Answer:
The Mihrab of the Great Mosque, Cordoba Spain, built during the reign of al-Hakam II. A mihrab is used to identify the wall, that faces Mecca in a mosque.
The mihrab of the Great Mosque is elegantly decorated with small pieces of glasses, reflecting the colors of dark blue, and brown. The use of yellow and gold color in the calligraphic along with plant motifs in decorating the arch.