investigation
to spread
net
to investigate
to become extinct
to insist on
to conduct
to launch
main suspect
a cure
to fund
research
the process of examining a situation thoroughly to find out the facts.
to provide money for a particular purpose.
a device made of threads or wires woven across a frame used for catching fish or other objects.
a solution or treatment that brings an end to a disease.
to start something new, like a product or project.
the person believed to be most likely responsible for a crime.
to distribute over a wide area.
the systematic study of a subject in order to discover new information.
to organize and carry out a specific activity or event.
when a species no longer exists on Earth.
to demand something forcefully and not accept refusal.
to examine closely in order to uncover the truth.