Answer:
to do day-to day activities easily and make surrounding comfortable for man
Explanation:
as an example , binary numbers help to work computers ,calculators.they help us lot .
scientific methods also need to write large and small numbers in short ways .so, scientists find various patterns .
The correct answer is option 1. Be, Mg, and Ca is the correct order arranged in increasing atomic radius. This is predicted based on the periodic table. The atomic sizes increases as one moves downwards in the periodic table.
3.
protium (A = 1), deuterium (A = 2), and tritium (A = 3).
Answer: D. test tubes, thermometers, etc
I think this is the correct answer. Sorry if it is not.
Explanation: