Petroleum is a mixture of a very large number of different types of hydrocarbons; the most commonly found molecules are alkanes (paraffin), cycloalkanes (naphthenes), aromatic hydrocarbons, or more complicated chemicals like asphaltenes.

The words Kharif and Rabi both are derived from the Arabic language. Kharif literally means "autumn" and  Rabi means "spring" in Arabic.   Rabi crops are those agricultural crops that are sown in winter and harvested in the spring in India and Pakistan. They are sown around mid-November with the onset ... Read More

Given: $S_n=\frac{1}{2}[3n^2+7n]$ To do: Find nth term and hence, write its 20th term. Solution:Let us take sum upto 1 term $S_1=\frac{1}{2}[3+7]=5$ Let us take sum upto two terms $S_2=\frac{1}{2}[3\times4+7\times2]=\frac{26}{2}=13$ We know, $S_1=a_1=5$ $S_2=a_1+a_2=13$ $S_2-S_1=a_1+a_2-a_1$ $13-5=a_2$ $a_2=8$ We know $d=a_2-a_1$ ... Read More

A fertilized ovule develops into a seed and ovary develops into a fruit. In some flowers, the ovary consists of only one ovule. Therefore Mango has only one seed. In some flowers, the ovary consists of many ovules which develop into many seeds like in Watermelon.

Respiration is the process where a living organisms produces the energy with the intake of oxygen and release of carbon dioxide produced during the oxidation of complex organic substances. There are two major types of respiration- aerobic, and anaerobic. Aerobic respiration- The respiration process ... Read More

 Image: An image is a reflection of light rays from an object. It has the color of the object. For example, you can see your image in a mirror.Shadow: When an opaque object gets in the way of sunlight, it stops light rays from traveling through it. This results in an area of darkness forming behind the object. ... Read More

Given: John's Income Is 20% More Than That Of Mr Thomas. To do: Find how much % is income of Mr Thomas Less than John. Solution: Let the income of Thomas be Rs 100 $20$% of Rs. 100 $= \frac{20}{100}\times 100 = Rs. 20$ John's income $=Rs. ... Read More

The flow chart of Nephron is posted below:-                                 

Given:  524 And 128 And 56To do: Find LCMSolution: LCM Of 524 And 128 And 5656 = 2 $\times$ 2 $\times$ 2 $\times$ 7128 = 2 x$\times$2 $\times$ 2 $\times$ 2 $\times$ 2 $\times$ 2 $\times$ 2524 = 2 $\times$ 2 $\times$ 131LCM = 2 $\times$ 2 $\times$ 2 $\times$ 2 $\times$ 2 $\times$ 2 $\times$ 2 $\times$ 7 $\times$ 131= 117376 Ans

The electric potential tells you how much potential energy a single point charge at a given location will have. The electric potential at a point is equal to the electric potential energy (measured in joules) of any charged particle at that location divided by the charge (measured in coulombs) of ... Read More