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from ,
Subject :NSO    Class : Class 7

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Class :
A relationship in which two plants help each other to survive.

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Class :
Symbiotic relationship is the process where organism help each other.They cannot live without each other

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gaurang gupta from mount litra zee school, uttar pradesh
Class : Class 8
a relationship in which two organism live together and take benefit of each other

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UVAIS ZUFAR from DON BOSCO SCHOOL OF EXCELLENCE, Chennai
Subject :NSO    Class : Class 5

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Class :
Tigers are becoming extinct due to poaching and we are disturbing their natural habitat.Tigers are also a very endangered species of animal.They are commonly found in India,China and Bhutan.

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Tigers are becoming extinct as poachers are hunting them and when we cut down forests their natural habitat are also becoming less.They need a vast area to hunt.

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monishajv2006@gmail.com from manan vidya, Ranchi
Class : Class 5
Because they are hunted by hunters for food and other purposes

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Soundharya from ISWK, Muscat
Class : Class 8
We humans destroy the habitat of tiger and poachers hunt them for their skin,nail and teeth.This is the reason for tiger becoming extinct.

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Daksh Rajesh Lolienkar from Doha Modern Indian School, Doah Qatar
Class : Class 5
Tigers are becoming extinct due to poaching and disturbing their natural habitat

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UVAIS ZUFAR from DON BOSCO SCHOOL OF EXCELLENCE, Chennai
Subject :NSO    Class : Class 5

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from ,
Class :
butterflies suck nectar with the help of proboscis

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Soundharya from ISWK, Muscat
Class : Class 8
Butterflies have the taste sensor on their feet.Thus they suck nectar through their feet.

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praveen prabhu from private international english school, abudhabi
Class : Class 5
It is called a proboscis and is a long flexible tube like straw that is the butterfly's tongue. The butterfly uses the proboscis to drink nectar and when it is not in use it curls back into a spiral.

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monishajv2006@gmail.com from manan vidya, Ranchi
Class : Class 5
Butterflies suck nectar using their tube like mouth.

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UVAIS ZUFAR from DON BOSCO SCHOOL OF EXCELLENCE, Chennai
Subject :NSO    Class : Class 5

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from ,
Class :
Echolocation is the using of echo to locate object or find a prey.Animals like Bat sends vibrations that bounce off from the body of their prey.Then they with the help the vibrations they can locate food easily.

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Jairaj Singh Basur from Vivek High School, Chandigarh
Class : Class 8
Echolocation is to use the echo( vibrations of sound bounced off by objects ) to locate certain items. Bats use echolocation to travel.

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UVAIS ZUFAR from DON BOSCO SCHOOL OF EXCELLENCE, Chennai
Subject :NSO    Class : Class 5

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early man are called nomads i.e move from one place to another.

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People who do not have houses, they roam around on place and another.

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NOMADS ARE THOSE PEOPLE WHO MOVE FROM ONE PLACE TO ANOTHER AND DO NOT HAVE A PERMANENT HOUSE

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Soundharya from ISWK, Muscat
Class : Class 8
Nomads are people who live in hilly and mountain regions.

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RITAJA MISHRA from DPS NORTH KOLKATA, Kolkata
Class : Class 8
When early human beings noticed that they are not getting sufficient amount of food to survive, they started moving from one place to another in search of food and shelter and they were called nomads.

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Mohit from Carmel High school Gadchiroli , Gadchiroli
Subject :NSO    Class : Class 8

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swayam agrawal from Udgam school for children, Ahmedabad
Class : Class 8
iron or steel

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from ,
Class :
STEEL

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Anidroid ,Aniruddha from Modern DPS, Faridabad
Class : Class 8
Aluminium

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from ,
Class :
Aluminium i.e. 6420m/s

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from ,
Class :
in diamond

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Aishwarya Dwivedi from St. John's School, Marhauli, Varanasi
Class : Class 9
Steel is an alloy....and he asked metal. I guess the answer is Aluminium.

Ans 7:

Nirdesh Prajapati from K V No. 3, Jaipur
Class : Class 8
in the hardest metal Chromium

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Daksh Rajesh Lolienkar from Doha Modern Indian School, Doah Qatar
Subject :NSO    Class : Class 5

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Class :
thermal conduction was originally called as diffusion

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UVAIS ZUFAR from DON BOSCO SCHOOL OF EXCELLENCE, Chennai
Class : Class 8
conduction -the transfer of heat between two parts of a stationary system, caused by a temperature difference between the parts. diffusion -a reflection or refraction of light or other electromagnetic radiation from an irregular surface or an erratic dispersion through a surface; scattering.

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Soundharya from ISWK, Muscat
Class : Class 8
The transfer of heat from one substance to another by direct contact is called conduction or diffusion.

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from ,
Subject :NSO    Class : Class 5

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Class :
Because varnish paints are immixable with water but it is mixable with turpentine oil.

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UVAIS ZUFAR from DON BOSCO SCHOOL OF EXCELLENCE, Chennai
Class : Class 8
Turpentine is used by the painter for thinning oil colors and for making ... irritations on their hands after contact with even small amounts of turpentine. ... use of turpentine to remove oil paint

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from ,
Subject :NSO    Class : Class 5

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Anshuman pathak from DPS NOIDA, Noida
Class : Class 5
Humble law

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UVAIS ZUFAR from DON BOSCO SCHOOL OF EXCELLENCE, Chennai
Class : Class 8
The American astronomer Edwin Hubble made the observations in 1925 and was the first to prove that the universe is expanding. He proved that there is a direct relationship between the speeds of distant galaxies and their distances from Earth. This is now known as Hubble's Law.

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from ,
Subject :NSO    Class : Class 3

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Anish Chawla from Cambridge Co-ed School, Jalandhar
Class : Class 3
Rhopalocera or Lepidoptera

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