Earths Layers
Hot Iron mixed with other metals and rock
Core
Changes in temperature from day to day or hour to hour
weather
Thick haze of smoke and chemicals
Smog
The number of children born each year for every 1,000 people
Birthrate
Flows to the service during a volcanic eruption
Magma
Temperature that stays consistent and changes over time
Climate
Gases in the atmosphere that traps the suns warmth.
Greenhouse Effect
Sever lack of food
Famine
Layer that contains the ocean floor
The Crust
The Three different climates in our world
The different climate zones are: Artic, Tropical and Temperate.
A process in which water is collected and distributed to crops.
Irrigation
About how much of Africa's Population is Immigrants?
1.9%
Which layer of the earth is the thickest
mantle
Reasons the Artic consistently colder than other climate zones
The Artic zones do not get direct sunlight.
A place shared by Plants and Animals that depend on one another for survival
Ecosystem
The average number of people living in a square mile
Population Density
7 large areas of land located on the earth's crust.
the continents
The time it takes for climate to change
100-1,000 years
Careful Use of a resource to Avoid Wasting Water
Conservation
The process of leaving the country they were born in and move to another
emigration