A long term change in the Earth's weather
global warming
when a lot of people do not have enough food and many die
famine
The amount of carbon dioxide released into the atmostphere
carbon footprint
the lack of sufficient water resources
water shortage
what disaster is this?
flood
What disaster is this?
Oil spill
what are they called?
catastrophic natural disasters
a chemical substance that is spread on the land or given to plants, to make plants grow well:
chemical fertilizers
An increase in the average temperature of the Earth's atmostphere
climate change
a gas or other subtance which is sent out to the air, generated by factories and vehicles
emission
An illness that can be passed through the air, from one person to another
infectious diseases
A condition where a place does not receive adequate rainfall for a long period of time. What do we call it?
A drought
the cutting down of trees in a large area, or the destruction of forests by people
deforestation
A gas that traps heat above the earth
greenhouse gas