10 Population and the environment

Key Terms:

population distribution: the pattern location address( pattern, location, address ) of where people live are housed( live, are housed )

population density of children( density, of children ): the number type age( number, type, age ) of people children( people, children ) living in an area, usually given as the number age type( number, age, type ) of people children( people, children ) per km^2

fertility rate: sometimes called total fertility rate (TFR), this is the average mean mode median( average, mean, mode, median ) number of children that are born to a woman man( woman, man ) during her his( her, his ) lifetime

Key term:

exponential growth: when the rate of increase becomes ever more rapid slower than historical records( ever more rapid, slower than historical records ) in proportion to the size of the population

Key term:

food security: when people have do not have( have, do not have ) enough affordable and nutritious flavoursome( nutritious, flavoursome ) food to eat

how much of the usable land on the planet is used to grow food?

around 1/2 1/4 1/2 3/4 all of it around 1/4( around 1/2, 1/4, 1/2, 3/4, all of it, around 1/4 )

The countries cities towns villages continents counties( countries, cities, towns, villages, continents, counties ) that produce the most food are not always the countries that consume waste( consume, waste ) the most food. Trade between different nations cities towns( nations, cities, towns ) enables the food produced in one country to be transported elsewhere.

Food consumption is measured through calorie intake output( intake, output ); an average person needs to consume between 2000 1500 200 2200( 2000, 1500, 200, 2200 ) and 2500 2000 2200 2150( 2500, 2000, 2200, 2150 ) calories a day in order to maintain their weight fat stores( weight, fat stores ) and remain healthy. Average calorie intake for every part of the world has increased decreased( increased, decreased ) since the 1990s and is expected to continue to rise fall( rise, fall ) by 2030.

Key terms:

malnutrition under-nutrition depth of the food deficit( malnutrition, under-nutrition, depth of the food deficit ): consuming an unsuitable amount of energy, protein and nutrients
under-nutrition malnutrition depth of the food deficit( under-nutrition, malnutrition, depth of the food deficit ): consuming too little much( little, much ) food, leading to loss an increase( loss, an increase ) of body weight
depth of the food deficit malnutrition under-nutrition( depth of the food deficit, malnutrition, under-nutrition ): a measure of the difference between average maximum( average, maximum ) food consumption and average minimum( average, minimum ) food requirements

People in industrialised unindustrialised( industrialised, unindustrialised ) countries consume more less( more, less ) calories than they need. The world health organisation (WHO) has identified a 'double triple( double, triple ) burden of malnutrition' whereby HIC's and LIC's are both facing malnutrition. People in HICs are eating food that is high low( high, low ) in calories but low high( low, high ) in nutrients.