Given :HCF of two numbers $= 6$.LCM of two numbers $=72$.One of the numbers is 18.To find :We have to find the other number.Solution :Let the other number be x.Product of two numbers $=$ LCM $\times$ HCF$x \times 18= 72 \times 6$$x = \frac{72 \times 6}{18}$$x = 4 \times 6$$x ... Read More

Mitochondria are double membrane-bound cell organelles found in most eukaryotic organisms with a typical size of 0.75-3 μm². They are commonly referred to as the ‘powerhouse of the cell’, it produces the energy necessary for the cell's survival and functioning. The amount of mitochondria in a cell depends on how ... Read More

A quadrilateral is a polygon with four sides (vertices). Different types of quadrilaterals are square, rectangle, trapezium, parallelogram, kite etc.Properties of a Quadrilateral:A quadrilateral has 4 sides, 4 angles and 4 vertices.All sides, angles can be equal or differentThe sum of all the angles of a quadrilateral is 360°.A parallelogram ... Read More

Synthetic fibres are those fibres which are made by humans through chemical synthesis, whereas natural fibres are those that are directly derived from living organisms. Synthetic fibres are created by a process known as polymerization. Examples- Rayon, Nylon, Polyester, etc.RAYONNYLONPOLYESTER1. Also known as Artificial Silk.1. The first synthetic made ... Read More

The act or practise of humans eating the flesh or internal organs of other human beings is called Cannibalism. A person who practices cannibalism is called a cannibal.

Seawater has a salinity of roughly 35, 000 ppm, which is equivalent to 35 grams of salt per one litre (or kilogram) of water. But the saturation level is also dependent on the temperature of the water. At 20 °C, one litre of water can dissolve about 357 grams of salt, a ... Read More

• The process of changing water vapour into its liquid form on cooling, is called condensation.•  In other words, the water in the air is known as water vapour, from your hot shower cooled when it met the surface of the cold mirror. This caused the water vapour to condense, ... Read More

Ventilators are made for the removal of hot air from the room and the windows are made for the supply of cool air. Since hot air rises up and cool air goes down, ventilators are made at a relatively higher height than the windows 

The Nitrogen dioxide dissolves in atmospheric moisture in the presence of oxygen of the air and forms nitric acid which is washed down by the rain and combines with the salt present on the surface of the earth. This Rain is known as Acid Rain.The ecological effects of acid rain ... Read More

Given: $\frac{-4}{ 9} \div$ $x=\frac{-16}{27}$ To do: Find the value of $x$ Solution:  $\frac{-4}{9}\times\frac{1}{x} $ = $\frac{-16}{27}$=$x = \frac{-27}{16}\times \frac{-4}{ 9}$=$x=\frac{3}{4}$ Therefore the value of $x=\frac{3}{4}$