a gradual increase in world temperatures caused by gases such as carbon dioxide that are collecting in the air around the earth and stopping heat escaping into space

a situation in which there is not enough food for a great number of people, causing illness and death, or a particular period when this happens:

the act of attacking ships in order to steal from them:

a person who has escaped from their own country for political, religious, or economic reasons or because of a war:

the state of being without a home:

(threats of) violent action for political purposes:

the act of someone coming to live in a different country:

the use of children to do work that should be done by adults:

the belief that people's qualities are influenced by their race and that the members of other races are not as good as the members of your own, or the resulting unfair treatment of members of other races:

an extremely large wave caused by a violent movement of the earth under the sea.

the condition of being extremely poor:

is the name given by the World Health Organization (WHO) on February 11, 2020 for the disease caused by the novel coronavirus SARS-CoV-2. It started in Wuhan, China in late 2019 and has since spread worldwide.is an acronym that stands for