four dangerous sharks

Great white shark

This is scary predator.It does not like the teste of humans,but it attacked human many times

Hammerheadshark

It is a species with widly spaced eyes.It often makes unpredictadle attacks

Tiger shark

It is often found at coastal areas and it attacks people

Blue shark

This is widly spread allover the world it commonly circles the pray before attacking

advantages and disadvantages of cigarettes

advantages of cigarettes
smoking helps to avoid knee pain and knee sugery.
smoking helps to reduce cold.
smoking helps to avoid parkinson's disease.
smoking helps to reduce obisity.
smoking gives relasation to our mind

disadvantages of cigarettes
smoking causes cancer.
smoking causes heart disease.
smoking causes breathing problem.
smoking allows carbon monoxide enter our body.
smoking causes strokes.

Ancient americans

The Maya and aztecs of central Americans and the incas of peru developed the remarkable cultures that were swept away by spanish invaders in the 1500's.They were the final witnesses to the long history of  human civilization in ancient americe. 

How fossils are formed

For a dead animal to become fossile it need to be buried quickly.By falling into muddy water bed or by  strom etc.

The soft tissue of the animal rots away but the skeleton remains and turn into rocks after millions of years 

Over time the mud and river sediments build up over the fossils and form into sedimentary rocks

Because of erosion and movements in the Earth's crust can expose it.A Palaeontologist can find it easily

 

PALAEONTOLOGIST - a person who study about rocks,fossils and prehistory

feathers of bird

Feathers helps the birds to keep their body warm and it also help them to fly.Their wings are equipped with stiff flight feather to provide both lift and, when the wings are flopped, forward thrust to propel thse masters of flight through the air something else common to all bird is that they lay egg with hard egg
 Australian lyrebirds are fantastic mimics.They copy not only other bird songs to attract mates, but also mobail phone ring tone,camer shutters,crying babies even car alarm
     

tips to reduse hair fall

use natural oils like cocunut,olive,canola apply it on your hair use less shampoo. Dont use hair drier.use jucies like garlic,onion,ginger juicies on head over night.Eat food which has lot of antioxidant take green tea.practice meditation because hair may fall because of stress and tension Take fruites like Apple,Grapes,lemon,dragon fruite
FRUITES WHICH HAS ANTIOXIDANT

onion

The onion is actually a bulb or a very big bud.The bulb comprises fleshy layers of modified leaves surrounded by papery outer layer onions are used in many dishes.They have a distinctive strong flavour and pungent odour.Onion have medical uses too.


onion make us cry when we cut it this is because of amino acid present in the onion cell.when we cut it the amino acid escape in the form of gas.The gas react with water in our eye and form sulfuric acid.this sting the sensitive nerve of our eye and cause tears

Arunachal pradesh

Arunachal pradesh meaning land of the down lit mountain in sanskrit.This place is mostly covered by the himalayas.Gorichenpeah and Eastern Gorichenpeah are some of the highest in this region at the lowest ellevation you can find some semi ever green forest 

CAPITAL-Itanagar

DISTRICTS-16

OFFICIAL LANGUAGE-Great horbill

STATE ANIMAL-Gayal

STATE FLOWER-foxtail orchid

what is gprs

GPRS stands for General packet radio service.It is a form of wireless communication at a very high speed .It allows information to be sent and recived.GPRS has provided a massive boost to mobile data usage.Payment are made as per data volume.Instead of pr minute pluse rate,as is the case with normal cell phone connection,you need to pay a fixed rent per month after which you surf for unlimited hours

phobia

what is phobia?
fear of something is called phobia


some phobias
Achluophobia-fear of darkness
coulrophobia-fear of clown
Gynophobia-fear of women
Chemophobia_fear of chemicals
Agyrophobia-fear of crossing roads

Salt March

Gandhi started the civil disobedience move ment on March 11,1930. accompanied by his 78 trusted volunteers.The march was from sabarmathi ashram to Dhandi.The 24 days walk was covering 240miles.Thousands of people joined this walk.On April 6th Gandhi manufactured salt

How does todes are different from frogs

Most frogs are active jumpers that lives near the water bodies.It has long back legs,webbed feet and very smooth moist skin.Toads are generally less active have dry warty skin. Frogs and toads are amphibians animals that typically prefer moist surroundings they a part of their life in water and  part no land.

They lay their shell less eggs in water and breath through the lungs and their skin

facts about moon

The Earth's gravity pulls the moon and keep in orbit.
The moon also have gravity it has about one sixth of earths gravity.
The moons gravity pulls the ocean to produce tide.
The moon is 400 times smaller than earth.
The moons surface temperature change its temperature

LUNAR CYCLE

will the sun shine for ever?

sun
The sun is a star a vast sphere of luminous gas.Its light is a by product of the gas-fuelled nuclear reactions in its core.It shine steadily now.But after 5 billion years it swell up before dying as a cold dark cylinder in space.The sun is 332,940 times more massive than Earth ane 750 time more massive than all  of the planets in the solar system put together
 
1.3 million earths could fit inside the sun

600million
the number of tonnes of the hydrogen converted to helium every second in the core of sun

220km/sec
the speed of sun moving around the our galaxy's center
 About 75% of the sun is hydrogen and most of the rest is helium

bones remains for ever

bones are made of two main materials they are calcium salts and collagen fiders make them strong also a bit flexidle.After death the collagen rots away, leaving just the durable hard parts behind. In life,the bones of human body supports the body and protects the organs

why don't haircuts hurt?

Because hairs are made of dead cella, so you don't feel a thing. The dead hari cell are filled with a tough, waterproof protein called keratin, as are nails, and the skin flakes that you lose daily in their millions from your skin's surface.All these thing are part of the fantastic protective overcoat and protects skils.

Andhra pradesh

short history of Andhra pradesh

 over the centuries (AP) had been ruled by several dynasties some are Ikshvakus, Eastern chalukyas and the Kakatiya etc.,

among these Vijayanagar kingdom was the most powerfull

one. In the 16th century the state saw the emergence of the qutb shahi dynasty which was defeated by mughals. In 1707, hyderabad came under the rule of Nizams. After independence, (AP) became the first state to be formed on basic of language.
            

interestingfacts

Longest canal
the kara kum canal is the longest canal in the world
 
M.S.swaminathan
Indian agriculture scientist he is also known as father of green revolution in India he played a major role in introducing (HYV) highyielding varities seed of India

Rayon

 rayon is not considered a true synthetic fiber as it is synthesized from cellulose which we obtained from plants.

It is semi synthetic fiber

Qutub minar
The ironpiller near qutub minar in Delhi is considered as a metallurgcal wounder in the world. it has withstood corrosion over 1600 years despite harsh weather conditions
 
karate
karate is a martial art developed in okinawa in japan