Question

Matter is composed of
(A) atoms
(B) Molecules
(C) Tiny particles
(D) All of the above

Answer 1

Hint:Anything which has mass and occupies space is called matter. Everything around us whose presence can be felt by our sense organs is called matter , for example, a book, pen, pencil, water, air, all living beings, etc. are composed of matter.
Matter can exist in three physical states –
1 Solid 2 Liquid 3 gases

Complete step by step answer:
The constituent particles of matter can exist in three states.
In solids , particles are held very close to each other in an orderly fashion , they are tightly packed and so there is not much freedom of movement.
In liquids, the particles are close to each other but not as close as in solids , so they can move around. However, in gases, the particles are far apart as compared to those present in solid or liquid states and their movement is easy and fast.
These three states of matter are inter convertible by changing the conditions of temperature and pressure.
Matter can be classified as Mixture and Pure substances.

Particles of an element consist of only types of atoms: These particles may exist as atoms or molecules.
It means. Matter is composed of atoms, molecules, tiny particles etc.
So the correct answer is (D).


Note:Matter is very familiar for all of us. Everything which is present around us is related to tiny particles, atoms, molecules and have some space. Which defines the Characteristics of matter. Constituent particles of pure substances have fixed composition.