Science Majorship Facts - Set 5

The hormone that increases the rate of heart beat and blood pressure after shock in a person is?

Adrenalin

Which layer of the atmosphere reflects radio waves back to the earth's surface?

Ionosphere

The average weight of man's brain is 4.8 ounces. What is the average weight of woman's brain?

4.4 ounce

The blind spot is located at the ... of the eye?

optic disc

A clouding that develops in the lens of the eye or in its envelope obstructing the passage of light is known as?

Cataract

A common skin condition that causes skin redness and irritation is known as?

Psoriasis

B12 deficiency can produce?

Insomnia

Ozone layer protects the Earth from ... radiations from the Sun?

ultraviolet

The only living cells in the body without blood supply is?

Cornea

Liver uses which vitamin for creating new Red Blood cells?

B12

Biopsy is done on tissues taken from?

Living body

Trypsin is an enzyme which digests protein produced by?

Stomach

Black gold is an oil; Black diamond is?

Coal

Guava has the maximum amount of which Vitamin?

vitamin C

The most dense and heaviest planet is?

Earth

Ring planet is Saturn; least dense and 2nd largest planet is?

Saturn

Apiculture refers to?

Science of bee keeping

Which of the following plants are called arthrophytes?

Sphenopsids

Reptiles hibernate during?

Winter

The "Rising" of the "evening star" indicates the direction of the?

West

The Planet which revolves slowly around the Sun is?

Neptune

The Saturn rings discovered by?

Galileo

Water has been discovered on which potentially habitable super-Earth?

K2-18b

The lenses are used for the correction of?

Both A & B

Nervous system includes which of these major components?

brain spinal cord and neurons

Sound travels about ... times faster in water than in air?

4

speed of sound in dry air at 20 C is?

343 m/s

Edward Genner discovered 'vaccine' in?

1796

The biggest planet in solar system is ... and having ... moons?

Jupiter Seventy-nine

Dinosaurs and many other species were extinct about ... years ago?

66 million

Animals use nitrogen in the form of?

Nitrites

Which is the purest form of water?

Rain water

Chronometer is invented by?

John Harrison

Wisdom teeth normally grow between the age of?

17-30

There is a hole in the Ozone Layer at?

South Pole

Which of the following letter does not represent in periodic table?

J

Which of the following science is considered "mother of all sciences"?

Mathematics

How is ammonia synthesized?

Herber process

Which of the following acid is used in Ink?

Tannic

Which of the following is a currency of Body cells?

ATP

Who is the known as the father of taxonomy?

Carolus Linnaeus

How many latitude lines are there?

180

What is the largest flower in the world?

Rafflesia

Which of the following flower is called Queen of Water?

Lilly

Bubo bubo is the scientific name of which of the following species?

Owl

Albert Einstein was a?

Physicist

Other name of red blood cells is?

Erythrocytes

Other name of platelets?

thrombocytes

Other name of white blood cells is?

Leukocytes

Who invented steamboat?

Robert Fluton

Who discovered blood circulation?

William Harvey

Who said that light is made of corpuscles/particles?

Newton

According to which law gas is directly proportional to temperature?

Charles Law

Fan was invented by?

Skaats Wheeler

... gas is released when coal is burnes in In lack of Oxygen?

Carbon Monoxide

Which gas is used to extinguish fire?

Carbon Dioxide

Which of following is the smallest endocrine gland in the human body?

Pituitary gland

Another name of vitamin C is?

Ascorbic Acid

Which of the following gland has shape of butterfly?

Thyroid gland

What is the one of the other name of Vitamin "A"?

Retinol

What is the name of the gas used in an air conditioner?

Freon

Internal friction of fluid is called?

Viscosity

The process whereby energy is dissipated from the oscillating system is called?

Damping

The movement of any solvent across a semipermeable membrane is called?

Osmosis

Which of the following noble gases is not present in atmosphere?

Radon

Which of the following noble gases is abundant in air?

Argon

Which law states that "equal volumes of all gases at the same temperature and pressure have the same number of molecules?

Avogadro's law

Which of the following waves have smallest velocity in vacuum?

Sound

By which process does the smell of cooking spread to all the rooms in a house?

Diffusion

Which law states that the volume of a given amount of gas held at constant pressure is directly proportional to the Kelvin temperature?

Charles' Law

Which law states that the rate of the effusion of a gas is inversely proportional to the square root of its density?

Graham's Law

The turning effect of force is called?

Torque

The photo-receptors in the eye are present in?

Retina

Which has the lowest pH?

Gastric Juice

Name the Scientist who stated that matter can be converted into energy?

Einstein

The most suitable unit for expressing nuclear radius is?

Fermi

Which of the following bonds are weakest in nature?

Hydrogen bond

The Study of human beauty is called?

Kalology

What is Melioidosis?

Infectious disease

A Rhinoscope (or Nasoscope) is a thin tube-like instrument used to examine the inside of the?

Nose

... soil is also called Regur soil?

Black

The process of splitting water molecules in the presence of light energy is called?

Photolysis

The contraction and expansion of the movement of the walls of the food pipe after entering the slightly digested food is known as?

Peristaltic movement

... is the "Work done in moving a unit charge between two points in an electric circuit"?

Potential difference

Tyndall effect is related to the ... of light?

Scattering

Which of the following has not involuntary muscles?

Brains

Involuntary muscles in a human body are present in?

Digestive system

Transistors do not need a warm up period because they have no?

Filament

Which organ is considered as chemical factory of human body?

Liver

The heaviest naturally-occurring element is?

Uranium

The heaviest man made element found so for is?

Ununoctium

Which instrument is used for viewing the sun?

Heliograph

... is a strong smelling agent added to LPG cylinders to detect leakage?

Ethyl Mercaptan

A crescograph is a device for measuring the growth in?

Plants

Which of the following is used in water purification?

Reverse Osmosis

lightest metal is?

Lithium

Which of the following pollutants in water causes "Minamata disease?

Methyl Mercury

The process of converting wet waste to manure is?

Composting

Which of the following organisms releases molecular oxygen into water?

Phytoplankton