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Science

To produce the Low temperature which of the following principle is used. -

Which among the given is present in hard water?

Which of the following type of reaction produces the most harmful radiation -

A weightless rubber balloon is filled with 200 cc of water. Its weight in water is equal to

Electron means _

Interveinal necrotic spots on leaves appear due to

Production of beats is a result of the phenomenon of

The genetic material that contains all the information needed for the development and existence of an organism is

To protect the iron from getting rusted, the coat of zinc is applied on it. This process is known as

Which among the given is responsible for permanent hardness of water -

Which of the following variety of coal contains recognisable traces of the original plant material -

A wheel-barrow is an example of

Electron Microscope is more magnifier than light microscope because -

Iodine solution is used to test the presence of

The green colour seen in firework displays is due to the chloride salt of:

To which organ of the body is the disease ‘Glaucoma’ related to?

Which among the given is responsible for the extra strength of pyrex glass

Which of the following vitamins is essential for bone and teeth formation?

A white and smooth surface is -

Electronic configuration of Element Atomic number 20 is

Iodine test is used to detect .

Prokaryotic cells lack

The Green house gases, otherwise called radioactively active gases include ?

Too much consumption of tea or coffee can result in deficiency of

Which among the given is the 2nd largest source of global energy -

Which of the following was the 1st antibiotic -

A yellow dust appears on the fingers, whenever we touch the middle of a flower. These tiny yellow grains are one of the most precious substances in nature because they contain the secret of plant life. What is this dust called?

Element having atomic number 29 is related to

Iodine value is used to estimate

The greenhouse effect is caused by the higher level of which gas in the atmosphere

Which among the given is the best source of Iodine -

Which of the following was to be discovered first in the chromosphere of the sun?

Aadami mein gunsutra ki sankhya kitni hoti hai

Elements that show the properties of both metals and non-metals are called

Iodised salt is a

Property of Ammonia is

The Greenhouse effect is mainly due to rise in atmospheric

Transboundary pollution (or) Acid rain is caused by:

Which among the given is the hardest element?

Ability of the eye to see objects at all distances is called

Enamel is

Iodized salt is advantageous for

Proteins are made up of .......

The greenish yellow colour is seen on a hard boiled egg. This is due to

Transformer is a device to convert

Which among the given is the petroleum wax

Absolute 0 is defined as

Endocytosis is a process whereby a cell

Ionisation energy of nitrogen is greater than that of oxygen as nitrogen has

Purification of copper is done by