particular geographical feature.
……...10.
infectious disease
j. an air mass of high temperature covering and extended area and moving relatively slowly.
…….. 11.
climate
k. a person who sees an event happening, especially a crime or an accident.
…….. 12.
heat wave
l. an area of land that is next to the sea.
…….. 13.
witness
m. a disease resulting from the presence and activity of a pathogenic microbial agent.
…….. 14.
mosquito
n. an insect or other organism that transmits a pathogenic fungus, virus, bacterium, etc.
…….. 15.
tick
o. a disease caused by bacteria that are spread by the bite of an insect called a tick.
…….. 16.
rodent
p. small flying insects which bite people and animals in order to suck their blood.
…….. 17.
dengue
q. a hole in the ground from which a supply of water is extracted.
…….. 18.
vector
r. a small creature which lives on the bodies of people or animals and uses their blood as food.
…….. 19.
region
s. an infectious, eruptive fever of warm climates, usually epidemic, characterized especially by severe pains in the joints and muscles.
…….. 20.
lyme disease
t. a period of days during which the weather is much hotter than usual.