Earth Science Unit 5 World Population

current world population

8 billion

industrial revolution

time period where machines got invented

green revolution

time period when farming became much more productive

health revolution

antibiotics and vaccines make diseases curable or preventable

urbanization

land becomes developed for cities

sustainable definition

to remain steady and maintained at a certain level

renewable energy

energy from sources that don ot run out

overconsumption

using too much stuff - food, resources - more than you need

birth rates

how many babies born per year

fertility rate

average number of babies born to a female in agiven population

infant mortality

average number of deaths of babies age 0-2 in a given population

life expectancy

average age a person lives to in a given population

composting

the decomposition of saved vegetables, fruits, etc. on purpose to make new soil

public transit

trains, busses, subways - able to carry large groups of people at once

green space

area set aside for people to enjoy nature and recreation in a city

urban farms

area set aside in a city for food growing

food miles

distance food has to travel to get to the consumer