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This is a cumulative positive error.
While measuring a sloped ground or stepped ground, there are chances for the chain to sag and the value obtained is higher.
Hence the error is positive.

-The vertebral column, also known as the backbone or spine, is part of the axial skeleton. The vertebral column is the defining characteristic of a vertebrate in which the notochord (a flexible rod of uniform composition) found in all chordates has been replaced by a segmented series of bone: vertebrae separated by intervertebral discs. The vertebral column houses the spinal canal, a cavity that encloses and protects the spinal cord.

-There are about 50,000 species of animals that have a vertebral column. The human vertebral column is one of the most-studied examples.

In physics (specifically, celestial mechanics), escape velocity is the minimum speed needed for a free, non-propelled object to escape from the gravitational influence of a massive body. It is slower the farther away from the body an object is, and slower for less massive bodies.

Escape velocity is only required to send a ballistic object on a trajectory that will allow the object to escape the gravity well of the mass M. A rocket moving out of a gravity well does not actually need to attain escape velocity to escape, but could achieve the same result (escape) at any speed with a suitable mode of propulsion and sufficient propellant to provide the accelerating force on the object to escape.

Samuel Hahnemann

He is known as the father of Homeopathy

He was a German physician

Tuberculosis is caused by the bacteria Mycobacterium tuberculosis.

T.B is also known as White plague and Koch’s disease.

Mantoux test and Tine test are the diagonosis test for T.B.

Francium is a chemical element with the symbol Fr and atomic number 87.

Fluid Mechanics deals with the study of fluid at rest or in motion with or without the consideration of forces
Fluid Statics is the study of fluid at rest.
Fluid Kinematics is the study of fluid in motion without consideration of forces and Fluid Dynamics is the study of fluid in motion considering the application forces.

Carbohydrates, such as sugar and starch, for example, are readily broken down into glucose, the body’s principal energy source. Glucose can be used immediately as fuel or can be sent to the liver and muscles and stored as glycogen.

Brass is an alloy of copper and zinc, in proportions which can be varied to achieve varying mechanical and electrical properties.
Element which is most abundant on the earth crust = iron

Element which is used for plating Steel cans used as food containers = Tin

Ozone layer is found within the Stratosphere.

Colour of Ozone layer is light blue.

September 16 is celebrated as International Ozone day.

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