Chromatography is a separation technique that works on the principle where molecules of the mixture are fixed onto the surface and liquid stationary phases separates from each other as it moves with the help of mobile phase.Mobile phase is the liquid in which the mixture is dissolved and  carries it ... Read More

Given :The given expression is $(28 ÷ 14) ÷ 2$.To do :We have to solve the given expression.Solution :$(28 ÷ 14) ÷ 2$ $= (2) ÷ 2$ $= 1$Therefore, the value of $(28 ÷ 14) ÷ 2$ is 1.

An equation without variables:An equation can be defined as a mathematical statement consisting of an equal symbol between two algebraic expressions that have the same value. Example :$2\times(3+5)=16$ is an equation.

Negative numbers:Negative numbers are located to the left of zero on the number line. Negative numbers are opposite to positive numbers.The negative number $-5$ is the opposite of the positive number $+5$ and vice versa. Opposite numbers are equidistant from zero on the number line.

There are so many different types of clothes that are available to us. Some of them are:-1. Uniforms2. Jackets and coats.3. Suits.4. Sweaters and waistcoats. 5. Skirts and dresses. 6. Trousers and shorts.7. Woollens.8. Undergarments.9. Thermals10. Sportswear.11. Leathers.12. Nightwear.13. Knitwear.

 Hydroelectric power is made by flowing water. Flowing water creates energy that can be captured and turned into electricity. A hydroelectric dam converts the potential energy stored in a water reservoir behind a dam to kinetic energy. As the water flows down through the dam its kinetic energy is ... Read More

Other living organisms can't prepare their food because they can't do photosynthesis.They can have, sunlight, carbon dioxide, water, minerals, for photosynthesis but they don't have chlorophyll which is the key thing for photosynthesis.

Here is the importance of 2 more plant fibres other than Jute and Cotton. 1. Coir is coconut fibre. It is a natural fibre extracted from the outer husk of the coconut. It is used to make products such as floor mats, doormats, brushes and mattresses.  2. Silk Cotton, a ... Read More

The respiration in plants takes place by the process of gaseous exchange in roots, stems, and leaves of plants. Carbon dioxide released which is utilized for photosynthesis. Roots absorb air from the air spaces between the soil particles. The oxygen absorbed is used to release energy which is utilized for ... Read More

Standard Fraction:A rational number $\frac{a}{b}$ is said to be in the standard form if b is positive, and the integers a and b have no common divisor other than 1.Example: $\frac{-5}{7} , \frac{-4}{7}, \frac{-1}{2}$ are all in standard forms.The standard form of $\frac{-3}{-7} $is $\frac{3}{7}$.Read More