Question

Define osmosis.
Define tissue.
Define pure substance.
define saturated and unsaturated solution.
define colloid.
define density.
define evaporation.
define sublimation.

Answer 1

the movement of water from higher consentration to the lower consentration is called osmosis

the substance that is made up of one substance is called pure substance

at any given temperature the solute particle is dissolve much as their capacity is called saturated solution

the solute particle is dissolve as much as their capacity without raising any temperature is called unsaturated solution

the mass per unit volume is called density its formula is Mass/volume

evaporation is a process in which liquid change their state into vapours

the solid is directly changes into vapour this process is called sublimation

Answer 2

Osmosis
The movement of water molecules from low concentration to high concentration is known as osmosis
Tissue
A group of cells is known as a tissue
Density
It is the ratio of mass and volume
Evaporation
The process of conversion of liquid into vapour is known as evaporation
Pure substance
A substance which is made of same atoms is known as pure substance
Sublimation
The process of conversion of solid into Gas without converting to liquid is known as sublimation