Granite rough and has ridges
Obsidian more smooth and hard
Pumice red and bumpy
Scoria grey and rough like
Mixtures – two or more substances that are not chemically combined<span> with each other and can be </span>separated<span> by physical means. The substances in a mixture retain their individual properties. Solutions – a special kind of mixture where one substance dissolves in another.</span>
A piece of paper is thin, slightly smooth, can be white and smell woody. 500 g of butter has a density of 0.911 g/ml and has a volume thus of 548.85 ml.
Ok what’s the question sir