economic activity and energy

reasons for decrease in primary over time

mechanisation

increase in tech and machinery

took peoples jobs from very labour intensive industry

lack of imports and exports

reasons for spike of secondary over industrial revolution

manufactured products had higher demand

most employement

outsourcing makes it cheaper

reasons for increase in tertiary sector

higher demand for services

more disposable income

increase in population

multiplier effect

reasons for increase in quaternary sector

advancements in globalisation

increase in education

technology wasn’t needed to such an extent during industrial revolution

non renewable energy

finite so will eventually run out

e.g coal, oil or gas

adv - more efficient, cheaper as infrastructure in place, more consistent in its output

disadv - finite, bad for environement, production of green house gases

renewable energy

infinite and so never run out

e.g. solar, tidal, wind

adv - dosent produce green house gases. infinite

disadv - more expensive to implement, not very aestetically pleasing, noise pollution, weather dependent

factors affecting location of industry

raw materials

water supply

natural harbour

markets

quality of life

capital

energy

transport links

overpopulation

when population is greater than amount of resources available

underpopulation

when population is less than amount of resources available

optimum population

when population is in balance with resources available

malthus theory

pessimistic view

food supply with slowly go up as population goes up

in time population would outstrip food supply until a catastrophe occured to reduce population

boserup theory

optimistic view

humans would find a way of producing more food in order to meet rising population

been achieved through mechanisation

informal sector

part of the economy that induces jobs that are not taxed or monitored by the government

self employed

no tax

cash in hand

flexible working hours

e.g. mango sellers, street venders

adv - help escape poverty, helps create multiplier effect, reduce social issues like crime, no education needed to earn money

disadv - no holiday rights, no constant income, no minimum age, work in dangerous or hazardous conditions

ways to conserve energy

double glazing on windows

efficient boilers

renewable energy

walk or cycle

electric cars

energy mix

relative contribution of different energy sources to a countrys energy consumption

primary energy

an energy form found in nature that has not been changed by human processing e.g. fossil fuels

secondary energy

When we convert primary energy into a transportable form

energy security

the uninterrupted availability of energy sources at an affordable price

how can countrys work to build their energy security

diverse their fuel import partners

improve energy efficiency

diverse their energy mix