The correct option is BY CONDUCTING EXPERIMENTS THAT EXPOSE THEIR PROPERTIES.
Scientific investigations are always ongoing in all parts of the world, scientists strive to build on existing knowledge by carrying out more experiments that are targeted at obtaining more information above that which is already known.
A. Separated twins develo traits that differ according to the environments in which they are raised
Answer:
8. D
9. D
10. C
I'm not sure about number 8