Developments in lasers and robotics have helped people <u>b. perform complicated </u><u>surgeries</u>.
<h3>What is the connection between lasers and robotics?</h3>
Robotics uses laser technology for remote sensing, enabling robots to tell the characteristics of an object from a distance.
Robots are machines used to perform tasks done traditionally by human beings.
Thus, developments in lasers and robotics have helped people <u>b. perform complicated </u><u>surgeries</u>.
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Electrons orbit the nucleus of the atom in electron clouds.
"Dalton's Atomic Theory
"1) All matter is made of atoms. Atoms are indivisible and indestructible.
"2) All atoms of a given element are identical in mass and properties
"3) Compounds are formed by a combination of two or more different kinds of atoms.
"4) A chemical reaction is a rearrangement of atoms"
source: http://www.iun.edu/~cpanhd/C101webnotes/composition/dalton.html
Answer:
Nicolaus Copernicus proved that the Earth orbits the sun.
Explanation:
He did.