Answer the following questions: a) Define population density.
b) Differentiate between immigration and emigration.
c) Give reason for the following:
i. Rural areas have lower population density.
ii. Refugees from different countries increases the population of a country.
iii. Education plays an important role in determining

a) Population density (in agriculture: standing stock and standing crop) is a measurement of population per unit area, or exceptionally unit volume; it is a quantity of type number density.

b) Emigrate means to leave one location, such as one's native country or region, to live in another. Immigrate means to move into a non-native country or region to live.

c) i) rural areas population density is very low. Many people live in a city, or urban area. Hamlets, villages, towns, and other small settlements are in or surrounded by rural areas

ii) Causes for the crisis of the refugees can include war and civil war, human rights violations, environment and climate...

iii) Education plays a key role in determining how you spend your adult life – a higher level of education means higher earnings, better health, and a longer life. ... Those without the skills to participate socially and economically generate higher costs for health, income support, child welfare, and social security systems.

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a maximum–minimum thermometer. the scales are fahrenheit on the inside of the u and celsius on the outside. the current temperature is 23 degrees celsius, the maximum recorded is 25, and the minimum is 15, both read from the base of the small markers in each arm of the u tube. the bulbs are hidden by a plastic housing.

six's thermometer is a registering thermometer which can record the maximum and minimum temperatures reached over a period of time, for example 24 hours. it is used to record the extremes of temperature at a location, for instance in meteorology and horticulture. it was invented by a british scientist james six, born in canterbury, in 1780; [1] the same basic design remains in use.

it is also commonly known as a maximum–minimum, minimum–maximum, maxima–minima or minima–maxima thermometer, of which it is the earliest practical design.

the thermometer indicates the current temperature, and the highest and lowest temperatures since last reset.