Python is recommended due to its benefits, like easy language and readability. Python is employed over other styles because it is very easy to understand.

The print function is applied to represent any kind of information like string or estimated value.

print ('' Happy learning!'')

The displaying function is a built-in feature of the Python language and utilized to understand a line of a text provided by the user.

str = input (''Hello Everyone'')

print (''Received input is:'',str)

Conservation Laws: A conservation law is a hypothesis based on observation and experiments which cannot be proved. These can be verified via experiments.

Law of conservation of Energy: According to the general Law of conservation of energy, the energies remain constant over time and convert from one form to another. The law of conservation of energy applies to the whole universe and it is believed that the total energy of the universe remains unchanged.
Under identical conditions, the nature produces symmetric results at different time.

Law of conservation of Mass: This is a principle used in analysis of chemical reactions. A chemical reaction is basically a rearrangement of atoms among different molecules. If the total binding energy of the reacting molecules is less than the total binding energy of the product molecules, the difference appears as heat and the reaction is exothermic.

The opposite is true for energy absorbing (endothermic) reactions.

Since the atoms are merely rearranged but not destroyed, the total mass of the reactants is the same as the total mass of the products in a chemical reaction.

Mass is related to energy through Einstein theory,

E = mc2, c – speed of light in vacuum

Law of conservation of linear momentum: Symmetry of laws of nature with respect to translation in space is termed as law of conservation of linear momentum.

Example law of gravitation is same on earth and moon even if the acceleration due to gravity at moon is 1/6th than that at earth.

Law of conservation of angular momentum: Isotropy of space (no intrinsically preferred direction in space) underlies the law of conservation of angular momentum.

There are three distinct stages in the evolution of the earth :

Stage I : In this stage planetesimals accretion happened and the earth originated. It was a barren, rocky and hot object-with a thin atmosphere of hydrogen and helium.
Stage II : Development of Lithosphere :
(i)The primordial earth was mostly in volatile state. Its density gradually increased, the temperature inside increased. As a result, the material inside started getting separated depending upon their densities.
(ii)The heavier materials like nickel and iron sank towards the centre of the earth and the lighter ones moved towards the surface. Over a period of time it cooled and solidified and condensed into a smaller size which later led to the formation of crust.
(iii)There was a giant-impact on the earth during the formation of the moon which heated it up further which lead to differentiated layered structure of the earth. Starting from the surface of the earth to the central part, distinct layers like crust, mantle, outer core and inner core were formed.
Stage III : Evolution of Atmosphere and Hydrosphere :
There are three stages in the evolution of the present day atmosphere
(a) Loss of primordial atmosphere containing a thin layer of hydrogen and helium as a result of stripping off by solar winds.

(b) The hot interior of the earth : Contributing to the evolution of the earth. The gases were outpoured from the interior of the earth during the cooling of the earth through the process called degassing. This started the evolution of the early atmosphere which largely contained water vapour, nitrogen, carbon dioxide, methane, ammonia and very little of free oxygen.
(c) Finally, the composition of the atmosphere was modified by the living world through the process of photosynthesis.
Formation of Hydrosphere : The continuous volcanic eruptions contributed water vapour and gases to the atmosphere. As the earth cooled, the water vapour released started getting condensed. The carbon dioxide in the atmosphere got dissolved in rainwater and the temperature further decreased causing more condensation and more rains. The rainwater falling onto the surface got collected in the depressions to give rise to oceans. Thus earth's oceans (hydrosphere) were formed within 500 million years from the formation of the earth. The process of photosynthesis was initially confined to oceans only and thus oceans started filling up with the oxygen. Eventually, oceans got saturated with oxygen and the oxygen started to flood the atmosphere.

On the second day of the journey out of Cape Town they encountered storm hails for the next few weeks they blew continuously with some of them making the waves rise up to the height of 15 m.

Basic Psychology is about the concepts that are fundamental to the study of human behavior. Memory, Attitude, Perception and Personality are some of these topics.

Basic Psychology also covers the history of the evolution of Psychology as a discipline by chronicling the schools of Psychology such as Psychoanalysis, Behavioral Psychology, Cognitive Psychology et al.

Applied Psychology has to do with the application of these concepts and involves experimentation and psychological intervention. In simple words, Basic Psychology is heavy on theory and Applied Psychology is heavy on experiments and the implementation of Psychological theory to deal with real life issues.