Rational number is a number that can be expressed in the form of a fraction but with a non-zero denominator. Irrational numbers are just opposites of Rational numbers, as they cannot be expressed in the form of a fraction with a non-zero denominator.

When the light falls on any surface, a part of that light is sent back to the same medium. This is known as reflection. When the light bounces back from its normal lane, it is termed as refraction.

Flower refers to a part of the plant that contains the reproductive organs. It is often surrounded by colorful petals and sepals. Bud refers to an elementary stage of a leaf and flower. It occurs as a small auxiliary or terminal protuberance (stem) on a plant.

Anthropology is the study of humanity that focuses on the culture, behavior and biology and the effect of changing time on them. Sociology is the branch of study that specifically deals with the society. It consists of studies related to the class, race, ethnicity, gender, family, education and religion. Psychology is related to the study of the human mind and human behavior. Ethnography is described as a branch of anthropology that deals with the scientific description of culture and cultural processes. Archaeology deals with the studies of ancient art, customs and science through the process of recovery and analysis of things left behind by them.

An integer refers to a whole number meaning that it is not in a form of a fraction. Integers comprises of the whole numbers as well as their opposites. A number can be described as a mathematical value that is represented through a word, symbol or figure. These numbers are used to denote a particular quantity. Numbers are generally used for measuring, labeling and ordering.

When the light falls on any surface, a part of that light is sent back to the same medium is known as reflection. When the light is bounces back on the plane surface when it is bent by a gravitational force is known as deflection.

Niagara Falls are the waterfalls located on the Niagara River. They comprise of three waterfalls: The American Falls and Bridal Veil in the United States of America and the Canadian ‘Horseshoe’ that falls in Canada. Thus, there is no difference between Niagara Falls NY (USA) and Niagara Falls Canada in context to waterfalls. However, Niagara Falls (USA) may be used to refer to the American Falls and Bridal Veil, whereas Niagara Falls Canada may be used for the Horseshoe Falls. Niagara Falls is also a name of a city nearby, both in U.S.A. and Canada.

Niagara Falls are the waterfalls located on the Niagara River. They comprise of three waterfalls - The American Falls and Bridal Veil in the United States of America and the Canadian ‘Horseshoe’ that falls in Canada. Thus, Horseshoe Falls can be referred to as one of the Falls forming the Niagara Falls.

Kinetic energy is the energy that is possessed by an object, due to the motion. It is equivalent to the work that is required in order to accelerate the object. Momentum is described as a quantity that states an object’s resistance to stopping. Therefore, it can also be defined as the “Inertia in Motion.”

Impulse can be described as a quantity that states the effect of a net fore acting on an object. Momentum is described as a quantity that states an object’s resistance to stopping. Impulse and momentum are directly related to each other. Impulse can also be described as a change in momentum.

A city is a large and permanent settlement. Whereas, a state is a larger area, which is often governed by its own government, known as the State Government. A state is usually bigger in area than a city, and it often incorporates various cities, counties, regions, villages, towns, etc.

Velocity refers to the rate of change of distance with respect to time. It is a vector quantity, which means that it has both- a direction and a magnitude. Instantaneous velocity can be described as the rate at which an object is moving at a specific moment.

Inertia can be described as a property or tendency of an object that resists any change to its state of motion. Moment of Inertia is the measurement of an object’s resistance to change to its rotation.