Life in other planet

The Earth is the only planet where life can exist and evolution of new form of life can occur. The Mercury and Venus have similar Rocky structure like that of the Earth. Being closer to the sun the temperature is very high in them. Similarly there is no atmosphere in planet Mercury and the rare atmosphere containing negligible percentage of oxygen in the venus is not enough to support life. The Mars is a planet having a similar Rocky structure, till now no life has been found to be existing in it. The outer planets that lie beyond the orbits of the mars are more massive and their surface temperature is very cold.

Escape velocity

It is the minimum velocity to throw a body to space so that it doesn't come back to the earth's surface.

11.2 km/s

Dimensional analysis

In engineering and sciencedimensional analysisis the analysis of the relationships between different physical quantities by identifying their base quantities (such as lengthmasstime, and electric charge) and units of measure (such as miles vs. kilometers, or pounds vs. kilograms) and tracking these dimensions as calculations or comparisons are performed. The conversion of units from one dimensional unit to another is often somewhat complex. Dimensional analysis, or more specifically the factor-label method, also known as the unit-factor method, is a widely used technique for such conversions using the rules of algebra.

Somatic cell

Any cell that doesn't take part in the formation of gamete is known as somatic cell. It makes vegetative part of the body.

Calorimetry

It is the act of measuring amount of heat released or absorbed during a chemical reaction.

Citric acid

Citric acid is a weak acid because it does not ionize completely in water.

Good luck

Each step you take in your life
Will reflect in your life later on
So strive hard and achieve whatever you wish
Coz this time won't come back ever
Study hard and get the grades that you desire
No one can stop you to reach higher
Good luck from my side
For this part of the tide!

Pluto

Pluto is not considered as a planet of the solar system because:
I. It intersects the path of Neptune.
II. It is too small.