Ihaven't the slightest clue how to do this i just need it done so i can exempt my exam

Why do scientists look for patterns in the world? a. patterns can explain observations. b. patterns never change, no matter what. c. patterns are easy for scientists to detect. d. patterns are all the same, through all time.

The missing component to the table to the right or indicated with orange letters complete the table by filling in the corresponding numbers or symbols

What type of matter is made of only one kind of atom