Essay on chemical evolution

In other situations, though, lose-lose outcomes occur when win-win outcomes might have been possible. The classic example of this is called the prisoner's dilemma in which two prisoners must decide whether to confess to a crime. Neither prisoner knows what the other will do. The best outcome for prisoner A occurs if he/she confesses, while prisoner B keeps quiet. In this case, the prisoner who confesses and implicates the other is rewarded by being set free, and the other (who stayed quiet) receives the maximum sentence, as s/he didn't cooperate with the police, yet they have enough evidence to convict. (This is a win-lose outcome.) The same goes for prisoner B. But if both prisoners confess (trying to take advantage of their partner), they each serve the maximum sentence (a lose-lose outcome). If neither confesses, they both serve a reduced sentence (a win-win outcome, although the win is not as big as the one they would have received in the win-lose scenario).

Chemists frequently refer to chemical compounds using chemical formulae or molecular structure of the compound. There has been a phenomenal growth in the number of chemical compounds being synthesized (or isolated), and then reported in the scientific literature by professional chemists around the world. [15] An enormous number of chemical compounds are possible through the chemical combination of the known chemical elements. As of May 2011, about sixty million chemical compounds are known. [16] The names of many of these compounds are often nontrivial and hence not very easy to remember or cite accurately. Also it is difficult to keep the track of them in the literature. Several international organizations like IUPAC and CAS have initiated steps to make such tasks easier. CAS provides the abstracting services of the chemical literature, and provides a numerical identifier, known as CAS registry number to each chemical substance that has been reported in the chemical literature (such as chemistry journals and patents ). This information is compiled as a database and is popularly known as the Chemical substances index. Other computer-friendly systems that have been developed for substance information, are: SMILES and the International Chemical Identifier or InChI.

In addition, other elements conspire to take away from the harvest for which we worked so hard to produce. Despite the best application of modern agricultural practices, an unavoidable portion of what is grown rots in the fields prior to harvest time, or in the world’s storage bins afterwards. Every year, depending upon geographic location and intensity of El Niño events, crops suffer from too little water and wither on the spot, or are lost to severe flooding, hailstorms, tornados, earthquakes, hurricanes, cyclones, fires, and other destructive events of nature. Many of these phenomena are at best difficult to predict, and at worst are impossible to react to in time to prevent the losses associated with them. In sub-Saharan Africa, locusts remain an ever-present threat (42), and can devastate vast areas of farmland in a matter of days. Even after a bumper crop is realized, problems associated with processing and storage lessen the actual tonnage that is available to the consumer. A large portion of the harvest, regardless of the kind of plant or grain, is despoiled or a portion consumed by a variety of opportunistic life forms (., fungi, bacteria, insects, rodents) after being stored. While it is conceded that at present the abundance of cash crops is more than sufficient to meet the nutritional needs of the world’s human population, delivering them to world markets is driven largely by economics, not biological need. Thus, the poorest people – some billion – are forced to live in a constant state of starvation (43), with many thousands of deaths per year attributable to this wholly preventable predicament (44). Locating vertical farms near these human “hot spots” would greatly alleviate this problem.

Sometimes, you need to be able to write a good essay in a short amount of time for a timed exam, such as the Advanced Placement exams in high school. At other times, you might find yourself in the uncomfortable situation of having to write an essay fast because you procrastinated or let it sneak up on you. Although an essay written at the last minute will almost never be as good as an essay you spent more time on, putting together a decent essay quickly is still feasible. With a little planning and a lot of hard work, you can write an essay that’s good (or good enough!) in just a short time.

Essay on chemical evolution

essay on chemical evolution

Sometimes, you need to be able to write a good essay in a short amount of time for a timed exam, such as the Advanced Placement exams in high school. At other times, you might find yourself in the uncomfortable situation of having to write an essay fast because you procrastinated or let it sneak up on you. Although an essay written at the last minute will almost never be as good as an essay you spent more time on, putting together a decent essay quickly is still feasible. With a little planning and a lot of hard work, you can write an essay that’s good (or good enough!) in just a short time.

Media:

essay on chemical evolutionessay on chemical evolutionessay on chemical evolutionessay on chemical evolution