Reserved powers are power that r reserved for people who are still coming up.
for government are they have limited power so its reserved
Answer:
The United States developed and used the first nuke in WW2
Explanation:
America dropped the bombs on the Japanese cities of Hiroshima and Nagasaki. Some people say it was inhumane to decimate entire cities in a war. However, America would not have entered the war in the first place if they were not provoked by the unjustified obliteration of a US Navy fleet and base that occurred a few years prior at Pearl Harbor. The nuclear bombs created an instant submission of the opposing forces and helped bring an end to WW2. This did, however, lead to the cold war era between the world superpowers.
1. Samples of a microbial colony obtained from the natural environment are not pure culture. They are mixed cultures because the environment consists of an array of microorganisms and not one specific organism. A sample obtained from the natural environment such as water or soil may contain several species of microbes that need to be further isolated to obtain a pure culture.
2. Isolation streak plate technique involves the dilution of the sample several folds and then streaking a small amount using a sterile inoculation loop on an agar plate in a zig-zag manner. This is done to obtain a pure culture of bacteria from a mixed population by separating the microprocessor. When the sample is diluted into a small concentration and is streaked onto agar placed, widely spaced, discrete colonies of bacteria can be observed. These isolated colonies can be further cultured to obtain pure cultures by picking and re-streaking them on fresh agar plates.
3. A microbial colony is considered a pure culture because it consists of single species. A single species of bacteria cluster and form an isolated colony on an agar plate which can be further plated on fresh medium.
3-1 - If your agar plate shows discrete uncluttered colonies then you have obtained an isolated colony. The following picture might help you to understand.
3-2. If you subculture isolated microbes into a sterile nutrient broth without any contamination, it will still be considered pure culture because it is single isolated species in a sterile aseptic environment of the nutrient broth.
3.3. A pure culture can become a mixed culture due to contamination. This could be caused by airborne bacteria if your conditions are not aseptic. Contamination is possible if the work area is not clean and sterile or if the glassware is not sterile. The contamination can transform your pure culture into a mixed culture and is hence problematic. So, it is very important to maintain a sterile and aseptic environment, glassware, and instruments.
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Crude divorce rate is the ratio of the number of divorces to the average population in a given year. Divorce-marriage ratio is the ratio of the number of divorces to the number of marriages in a given year. Refined divorce rate is the ratio of divorces to the number of married women. Divorce rate is the general term for all of these ratios.
Thus, from the description, the answer is divorce-marriage ratio.
The correct answer is option B. The three main European rivals in North America were England, France and Spain. These three countries conducted wars against each other in North American territory so that they could all keep their colonies and expand the territory over their countries could rule. At the end of The French and Indian War, England would be the clear winner out of the three, with the most territory under its power.
