In that age the people used to hunt 

The regions of the surface and atmosphere of the earth or another planet occupied by living organisms.THIS IS KNOWN AS BIOSPHERE.

The domain of water like rivers,seas,lakes are called biosphere

In form of paper presentation in 5 to 6 pages with pictures and materials

Maxico and Delhi

In Delhi the world largest pollution free transport system is implemented. 

Ans. A meander, in general, is a bend in a sinuous watercourse or river. A meander forms when moving water in a stream erodes the outer banks and widens its valley, and the inner part of the river has less energy and deposits silt.

Ans. It was during the seventh century that the kings acknowledged the big landlords as their subordinates or Samantas. The Samantas were expected to bring gifts and provide military support to their kings. In due course they gained power and wealth. They declared themselves to be maha-samantas, maha- mandaleshvar (the great lord of a circle or region) and so on. Rashtrakutas were one of them who were initially the subordinates of the Chalukyas in Deccan. In the mid-eighth century, Dantidurga, a Rashtrakuta chief, performed a ritual hiranya-garbha and overthrew the Chalukya overlord. After the ritual was over he was reborn as Kshatriya, even if he was not by birth.

DEMOCRACY PROVIDES US WITH UNIVERSAL ADULT FRANCHISE.UNDER WHICH EACH INDIVIDUAL ABOVE AGE BAR OF 18 YEARS IS GIVEN RIGHT TO VOTE.EACH VOTE HAS IT OWN VALUE.A VOTE WHETHER OF RICH OR POOR IS ONE ONLY.ALL THE MINISTERS,CHIEF MINISTERS AND PRIME MINISTER IS ELECTED BY PEOPLE ONLY.MOREOVER OUR CONSTITUTION PROVIDES BASIC RIGHT TO EACH INDIVIDUAL COMMONLY KNOWN AS FUNDAMENTAL RIGHTS TO PROVIDE EQUALITY AND JUSTICE TO EACH INDIVIDUAL.

Ans. The period between the 8^th and the 18^th centuries is termed as the medieval period in India.

Ans. Following are the observation made by Zia ud din Barani :

• Alauddin Khilji was a shrewd administrator who knew the root cause of the decline of the administration.
• Khilji was bound to take stringent measures against the nobles and made their life difficult by introducing new rules and regulations.
• The positions of the nobles were turned into ordinary one and spies were appointed to put a check on their activities.

It's in the book. Last page of the chapter page no 15 in the glossary last one

1.mughal empire.    2.Delhi sultanate     

Living components like plants, animals and microbes from the biotic environemnt while non-living components like soil, water, temperature forms the abiotic components of environment.

kautilya's arthasastra, megasthenes' indica the literary sources 

& edicts of ashoka are archaeological sources of modern period

Warm currents:

• North equitorial current
• Japan current
• North pacific current
• Monsoon drift

Cold currents:

• West wind drift
• Canary current
• Greenland current
• Labrador current

Gulf stream, Somali.kuroshio

29oct1999

Global Warming is the increase of Earth's average surface temperature due to effect of greenhouse gases, such as carbon dioxide emissions from burning fossil fuels or from deforestation, which trap heat that would otherwise escape from Earth. This is a type of greenhouse effect.

Ans. Rokeya Sakhawat Hossain was born in a rich family who acquired education with the dream of bringing about a change in the condition of women.

She learnt Bangla and English and later became a writer.She wrote a story Sultana's Dream in 1905. In her book she talks of an imaginary world , Ladyland where women are free and are treated equally.

She dreams of a society where women get equal opportunities, and are flying planes, driving cars, and controlling the society. In 1910 she started a school for girls in Kolkata. She has been a symbol of change.