9781422274514

WORDS TO UNDERSTAND

atmosphere the blanket of gases enveloping the Earth

calcium carbonate a white, solid compound found in chalk, limestone, and in animal shells and bones

climate the weather conditions of a particular place

dengue fever a disease caused by viruses spread by mosquitoes, involving high fever, rashes on the body, headache, and vomiting

disrupt to interrupt or stop something

endangered an organism that is facing danger and is about to go extinct

environment the surroundings or conditions in which a person, animal, or plants live

extinction the process of an animal or plant no longer existing

habitat the natural home or environment of a living organism.

immune system the body’s defense system that fights germs to prevent infections and diseases

incubation a process to keep eggs warm till the time babies develop and come out

krill a very small shrimp-like crustacean

lichen a very small, soft, and slow-growing plant

malaria a mosquito-borne disease producing fevers, chills, and flu-like symptoms in humans

malnutrition a medical condition in which an animal or person does not get enough nutrients in his/her diet

CLIMATE CHANGE: Problems and Progress

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