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5501.

What is ebola ?

Answer» Ebola Virus Disease (EVD) is a rare and deadly disease most commonly affecting people and nonhuman primates (monkeys, gorillas, and chimpanzees). It is caused by an infection with a group of viruses within the genus Ebolavirus. Ebola virus was first discovered in 1976 near the Ebola River in what is now the Democratic Republic of Congo.
Ebola is an virus
5502.

List any three properties the basic of which a colloidal solution can be recognised

Answer»
5503.

What is molecules. Give four examples

Answer» It is a snallest independent existence particle of an atom
5504.

Atomic mass of argon

Answer» 39.9
Atomic mass of argon (Ar) = 39.948Atomic number of argon (Ar) = 18
5505.

What are air cavities

Answer» Empty spaces filled with air are called air cavities
Here cavities means spaces . That means spaces having air which makes them to experience buoyant force.
5506.

Name the microbes which cause malaria and kala azar

Answer» Malaria is caused by a protozoan named plasmodium and Kala Azar is by a protozoan named Leishmania.
Kala azar cause protozoa
Leishmania
5507.

Sir science m hindi notes available nhi h

Answer» Wo Hindi English and Gujarati me available he
Online and library me sab kuch milta he ek bar library me jake science ki books padh.
I do not know???
5508.

How to define wprk

Answer» The act when one newton force acting on an object produces an acceleration of 1 M per second square this act is known as work
Work is multiplicative unit of force applied to the displacement of the body.
Work is said to b done if a force is applied on the obj. And it displace from its origin point....may it help u....?
Sory its work please answer me
5509.

Whats full form of C

Answer» Kis subject mai
Carbon
In chemistry , it is symbol of carbon
Carbon
Compressions(C)
In science carbon atomic number is 6
In sci. Its carbon..
5510.

Which is the simplest protective tissue present in animal body? State its 3 functions.

Answer» Epithelial tissue
5511.

How do we calculate number of electrons in an orbit

Answer» No. Of electrons in an atom is same as it\'s atomic no......no. of atoms in a shell can be found out by 2nsquare rule....let\'s take an example of neon....it\'s atomic no. Is 10...so it consist 10 electrons,...in its K shell...n=1 son by doing 2nsquare....2×1*1=2 so in Kshell three will be 2 electrons....in L shell n=2 so by rule no .of electrons in it are 8....so in this way 10 electrons of neon are distributed in different shells....but after L shell... remember that the two n Square rule is overlapped by octet rule
5512.

Relation between \'g\' and\'G\'

Answer» g is acceleration due to gravity and G is gravitational constant
g acceletation due to gravityG universal law
g=MG/r*r
5513.

Explain carbon cycle with a diagram

Answer» Carbon enters life forms through the process of photosynthesis. Photosynthesis is the process by which plants prepare food in the presence of sunlight and chlorophyll. During photosynthesis, carbon dioxide and water combine to produce glucose and oxygen. This changes the atmospheric carbon into glucose molecules.
5514.

Give two examples of diseases each of bacteria and viruses

Answer»
5515.

How do plants get nutrients

Answer» Plants get nutrients from air, water, and soil. Soil is the major source of nutrients. Thirteen of these nutrients are available from soil. The remaining three nutrients (carbon, oxygen, and hydrogen) are obtained from air and water.
The plants get nutrients by root
5516.

who wrote the book "Origin of species"?

Answer» Darwin published his theory of evolution with compelling evidence in his 1859 book On the Origin of Species, overcoming scientific rejection of earlier concepts of transmutation of species. By the 1870s, the scientific community and a majority of the educated public had accepted evolution as a fact.
Charles Darwin
5517.

Ecplain the classification of organisn based on evolution

Answer» Primitive arethose which are not so developed and have ancient body designs while advanced are those which are recent and have developed body designs
5518.

How will you separate a mixture of common salt comphor and iron filling describe the process

Answer» Thnks i think it was a right answere
First of all we will separate iron using magnetic separation. Then we will separate camphor and salt using sublimation as camphor will get vapourised and salt will be left
5519.

State the universal low of gravitate

Answer» It states that "Every object in the universe attracts each other with a force which is directly propositional to the product of the masses of the object and inversely propositional to the square of the distance between them".Mathematically F=G*M*m/d^2where F= force of the object G=constant M= mass of one object m=mass of another object d=distance between the objects
5520.

Give notes of mole concept and all about mole for class 9

Answer» Mole= Given mass of solute/Total molecular mass of solute.Molecule=atom/atomcity.Atomcity means no. Of present atom in given question.For ex=H2oIn this compound no .of atomcity present is3(2=H,&1=oMole =Molecule /Avodagros no.Avodagros no= 6.022×10to be power 23
5521.

What is main by xylem

Answer» Xylem is an part of complex permanent tissue..Xylem:-.Xylem vessels.Xylem tracheids. Xylem parenchyma. Xylem fibre
5522.

How can we impress our teachers

Answer» How can we impress without changing ourself ...
We impress the teacher byOur behavior in our behave we impress the teacher. By Discipline and sencierty and import is this we good in study. By the respect of teacher we impress the teacher......
5523.

What you meant by sublimation

Answer» Sublimation means the change of solid state directly to gaseous Statw without changing in liquid state...
The process n which the solid directly changes its form to gaseous without undergoing liquid form and in which a gas directly changes its form to solid form without undergoing liquid form is known as sublimation
the change of state which is directly change solid to gas without changing in liquid is called sublimation
5524.

What is all the process and topics in short explain diversity in living organism

Answer»
5525.

What are differences between coelentarate and annelids

Answer» Annelida phylum has following features :Bilateral symmetry True body cavity so allow true organs to be packed Organ level of organisation Triploblastic May be unicellular or multicellular Organisms have setae or parapodia for locomotion Segmented Examples earthworm leech nereis Whereas cnidaria phylum has following features :Most organisms have radical symmetry Tissue level of organisation Gastravascular cavity Form of two layers, one layers form inner cells n second layer form outer cells They have slender tentacles which helps in capturing the prey Cnidoblats injects the toxin in the body of prey Divided into polyps and medusae Examples hydra obelia sea anemone
5526.

Define relative molecular mass and relative atomic mass

Answer»
5527.

Define Thermodynamics.

Answer» It is the relationship between hate and other forms of energy.
5528.

How to calculate the value of g in gravitation

Answer»
5529.

What\'re isotopes and isobars ???¿???????????????

Answer» Isotopes are atoms of same element having same atomic number but different mass number.Eg-carbon-12 and carbon-14Isobars are atoms of different elements having same mass number but different atomic number.Eg-Potassium and Calcium
5530.

1. Name the three layers of cells in plathelmenthies

Answer» the 3 germ layers are:-1. Ectoderm2.Mesoderm3.Endoderm
Endoderm
Encoders, ectoderm and mesoderm are three layers present in platyhelmenthies
5531.

Define intensity of sound.

Answer» The sound energy emitted in a unit second per unit time is called it\'s intensity.Its unit is decibel(Db)
5532.

How are the wavelength and frequency of a sound wave related to its speed??

Answer» Speed = wavelength × Frequency
5533.

Explain the kinetic energy of an object in the form of an equation

Answer» K= 1/2mv2
5534.

How to learn anything very easy

Answer» Learn when your mind isfresh and free of worries
Learn in morning because in morning our mind is fresh
5535.

What is the story of sun and moon why sun come only morning and moon at only at night

Answer» Because it is rotating means when there is sun in india then in australia is night. The sun and moon have to take part of rhe whole world Thankyou
Bcoz of earth rotation... Maybr
Don\'t know
5536.

Difference between ptridophyto and bryophyta

Answer» BRYOPHYTA Their body is differentiated in steam and leaf like structureThere is no tissue present for conducting water and other substances from one part to another part in plant Bryophyta are also known as plant amphibians PTERIDOPHYTA Their body is differentiated in steam and leafThere is conducting tissue for water and other substances in plant
5537.

Rna means

Answer» Ribo nuclie acid this synthesis of protien in our body
Rna stands for ribonucleic acid
Ribonucleic acid
RNA is a ribonucleic acid that helps in the synthesis of proteins in our body. This nucleic acid is responsible for the production of new cells in the human body. It is usually obtained from the DNA molecule. RNA resembles same as that of DNA, the only difference being that it has a single strand unlike the DNA which has two strands and it consists of only single ribose sugar molecule in it. Hence is the name Ribonucleic acid. RNA is also referred to as a enzyme as it helps in the process of chemical reactions in the body.
5538.

Question answer of ch 13

Answer» Subject
5539.

Two types of disease

Answer» Communicable or non communicable
Acute or chronic
5540.

From what the cell wall of fungi is made?

Answer» It is made up of complex sugar known as chitin
The cell wall of fungi is made up of cellulose and chitin. Chitin and cellulose are are among the most abundant bio polymers in the marine and terrestrial environments respectively. While cellulose is an organic compound with (C6H10O5)n being the formula and the most common in the Earth, chitin is a polysaccharide which contains nitrogen.\xa0
Chitin
5541.

Different between work and energy

Answer» They both are actually same. But work can be defined as the product of force and displacement (w=f.t) and energy is the stored ability to do work.w=e ie energy is equal to work done
5542.

Why is it difficult to hold a school bag having a strap made of a thin and strong string?

Answer» Because low area high pressure,high area low pressure
5543.

S.i unit of wavelenght

Answer» Meter
S.I unit of wavelength is m i.e metre.
5544.

Chapter 15 improvement in crop yields

Answer» It is no boring this chapter was so interesting
What is your question?
Boring chapter isn\'t it?
5545.

What is exoskeleton used for

Answer» It helps to give the shape to the body
5546.

What are the advantages and limitations of J.J.Thomson\'s model of an atom ?

Answer» Advantages of J.J Thomson’s modelAn atom consists of positively charged sphere and the electrons are embedded in it. So mass of the atom is assumed to be uniformly distributed. The negative and positive charges are equal in magnitude. Hence, this model was able to explain the overall neutrality of an atom.The limitations of J.J Thomson’s model of an atom are following:(a) It could not explain the result of the scattering experiment performed by Rutherford.(b) It did not have any experimental evidence in its support.
Limitations of j.j Thomsons model of an atom: His model can\'t explain the Rutherford\'s alpha scattering particle experiment . Which led the discovery of nucleus .
5547.

Mention any 3 symptons

Answer»
5548.

What is the father of biology ?

Answer» Aristotle
Good
Aristotle
5549.

What are the gravity

Answer» An object that at a height from the earth surface dropped towards the centre of the earth due to the force of earth is called gravity
Gravity is a force due to which objects attract each other. Usually we know that the Earth has a force called the gravitational force due to which all the objects if thrown upwards fall back to the ground.
the natural force that makes things fall to the ground when you drop them
5550.

State the number of atoms present in each of the following chemical species a) CO

Answer» 2 atoms
carbon dioxide molecule is chemically known as CO2. That means one atom of carbon and 2 atoms of oxygen, totaling 3 atoms.