I just took the test the answer is B.
The changes in technology, the cost of obtaining fuels, and the number of oil deposits discovered are some of the factors that helps predict the future of oil production. The number of oil refineries operating in the past does not predict to the future of the oil industry.
The answer is letter C.
At a fundamental level, water provides electrons to replace those removed from chlorophyll in photosystem II. Also, water produces oxygen as well as reduces NADP to NADPH (required in the Calvin cycle) by liberating H+ ions
During the process of photosynthesis, six molecules of carbon dioxide and six molecules of water react in the presence of sunlight to form one glucose molecule and six molecules of oxygen. The role of water is to release oxygen (O) from the water molecule into the atmosphere in the form of oxygen gas (O2).
Water also has another important role of being an electron feeder. In the process of photosynthesis, water provides the electron that binds the hydrogen atom (of a water molecule) to the carbon (of carbon dioxide) to give sugar (glucose).
Water acts as a reducing agent by providing H+ ions that convert NADP to NADPH. Since NADPH is an important reducing agent present in chloroplasts, its production results in a deficit of electrons, resulting from oxidation of chlorophyll. This loss of electron must be fulfilled by electrons from some other reducing agent. Photosystem II involves the first few steps of the Z-scheme (the diagram of the electron transport chain in photosynthesis) and therefore a reducing agent that can donate electrons is required to oxidize chlorophyll, which is provided by water (acting as a source of electrons in green plants and cynobacteria). Hydrogen ions thus released create a chemical potential (chemiosmotic) across the membrane that finally results in synthesis of ATP. Photosystem II is the primary known enzyme that acts as catalyst in this oxidation of water.
Answer:
I feel as if it is Georgia.
<span>The first large silver coins were minted in 1690 after the Polish coin isolette or zolota which was imported in large quantities by Dutch merchants during the seventeenth century. These coins were about one third smaller than the Dutch thalers.[1]</span> Their weight was fixed in standard dirhams (3,20 grams) and they contained 60 percent silver and 40 percent copper. The largest of these weighed 6 dirhams, or approximately 19.2 grams. Later, in 1703, an even larger coin weighing approximately 8 dirhams, or 25-26 grams and its fractions were also minted. <span>It appears that the first large coin of 1690 was intended as a zolota or cedid (new) zolota to distinguish it from the popular Polish coin and not as a gurush or piaster.[2]</span> Only after larger silver coins began to be minted in the early decades of the eighteenth century, was the new monetary scale clearly established. The new Ottoman gurush was then fixed at 120 akches or 40 paras. The early gurushes weighed six and a quarter dirhams (20.0 grams) and contained close to 60 percent silver. The zolotas were valued at three fourths of the gurush or at 90 akches. <span>The fractions of both the gurush and zolota were then minted accordingly.[3]</span> Due to wars and continuing political turmoil, however, many coins were minted with sub-standard silver content until the monetary reform of 1715-16. The appearance of sub-standard coinage attracted large numbers of counterfeiters until the 1720s.
