The best way to find the correct answer for a sentence completion would be : find that part of the text and look for the answer.
With this , you can find the answer in a more efficient way and in a shorter amount of time
hope this helps
This represents the example of founder effect.
The founder effect is a term in genetics that describes the loss of genetic variation as a result of new population formation by a very small number of individuals from a larger population. Small group of migrants (the afrikaner population of south Africa) that is not genetically representative of the larger population (Europe population) forms a new population with lower genetic variation.
Portland, Oregon, is a city right next to northern west coast of the USA. Besides being very close to the sea, it is also laid on a river. The sun that heats up the ocean and the river leads to evaporation, causing water vapour to ascend, because of a few wind currents, this water vapour is taken to Portland's area where it colds down and condensates, raining over Portland.
A ruler or a meter stick depending on its length.....
