I think it would be Freshwater Algae
yes i m agree with that Pure substances include only single atoms made of one element.
in chemistry , a pure substance that has only one kind of atom and cannot be broken into two or more simpler substance by physical or chemical means is an element . for ex. gold , silver , iron etc
D. You would represent a tall plant with an uppercase T and the dwarf with a lowercase t.
Answer:
The density (more precisely, the volumetric mass density; also known as specific mass), of a substance is its mass per unit volume. The symbol most often used for density is ρ (the lower case Greek letter rho), although the Latin letter D can also be used.
Explanation:
