Answer:
You shake a few drops of your alcohol with the reagent in a test tube. A tertiary alcohol reacts almost immediately to form the alkyl halide, which is insoluble and forms an oily layer. A secondary alcohol reacts within 3 min to 5 min. A primary alcohol does not noticeably react with Lucas reagent at room temperature.
Explanation:
<u>From the given options which may suitably apply to the description of grid-lines of the map are
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- They are measured in degrees
- They set up a reference system
- They divide Earth into four equal parts
Answers: Options A, B and E
<u>Explanation:
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Option A describes that the grid-lines of the map are measure in degrees, which are very true as the grid are lined with angular measurement which thus be done in unit of angles and is in degrees only.
Option B says it develops the reference system which specifies about the area being plotted are grid depending upon the size which sets up the referential system of enumeration.
Option E is true as the world or the Earth has been divided into 4 equal parts through the Prime Meridian as the longitudinal line and Equator as the latitudinal line.
Answer:
There is a large number of volcanoes in the Pacific Ocean which continuously erupts when these volcanoes erupt they cause many earthquake in Ocean . it is dangerous because it can harm and destroy many ships and areas around that volcano
Explanation:
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The correct answer is - C. Colombia.
Colombia has a long tradition in coca production and than illegal trade with cocaine and unfortunately this is what is the country's trademark. Unlike some of the South American countries where it is noticed a drop in coca production, Colombia is actually having an increase in production, and a very significant one, every year in the past 6 years there's more and more plantations with coca and there is more and more cocaine production that ends up illegally all over the world. This process is mainly sponsored and under the wings of the Colombian cartels.
