What is the world made of and how do you know?

the world is made of elements like gas and solid and more stuff

if you asked what is the world made of to biologist they will say it is made of natural organisms if u asked a chemist they will say that it is made of molecules made from atoms if you asked a phycist they will start from protons and neotrons and electrons

Step-by-step explanation:

just do 5.2 + 2 ( 7.2) and 1/3 x 3 (.9) and youv'e got your equation. 0.9( 9/10) + 7.2 ^2 = 16.4 hope i could !

step-by-step explanation:

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1