Substances
Many lucky people _______ shark attacks.
Scientist search for _______ that will lead them to either prove or refuse theories.
Remains
Scientists __________ that mosquitoes kill 3 million people in the world every year.
Many of our cleaning products contain _________ that are toxic especially for small kids.
For every mystery, there is always someone trying to __________ what really happened.
Survive
The police is carrying out a thorough _______ on the murder case.
Investigation
Estimate
Experts try to understand why ancient people _________ pyramids or created strange artwork.
Poison
Risk
The ________ of home accidents is highest for children under 5 yo.
Spiders kill 6 people in the USA every year with their ________.
Scientist study the ________ of long-extinct animals speculating about the reasosn for their disappearance.
Evidence
Figure out
Constructed
