An increase in the average temperature of the Earth's atmostphere
cimate change
A long term change in the Earth's weather
global warming
A gas that traps heat above the earth
greenhouse gas
a gas or other subtance which is sent out to the air, generated by factories and vehicles
emission
poor health resulting from extreme heat
heat-related illness
An illness that can be passed through the air, from one person to another
infectious diseases
ecological balancea stable ecosystem in which a large number of species live together
ecological balance
The amount of carbon dioxide released into the atmostphere
carbon footprint
what are they called?
catastrophic natural disasters
when a lot of people do not have ebough food and many die
famine
the lack of sufficient water resources
water shortage
the cutting down of trees in a large area, or the destruction of forests by people
deforestation
a chemical substance that is spread on the land or given to plants, to make plants grow well:
chemical fertilizers
what disaster is this?
flood
what disaster is this
drought
