The National emblem consists of two parts- the upper and the lower parts.

Sun's energy to generate electricity was made possible after the invention of solar panels (technology).

When Aryans permanently settled in Sindh and the Punjab regions they began to practise agriculture.

The Sun is overhead on a line of longitude only once in a day.

(i) When the people themselves directly express their will on public affairs the type of government is called pure or direct democracy.
(ii) Ex: Switzerland.

(i) A system of exchanging goods for other goods, called barter system.
(ii) For example, exchange a bag of rice for enough clothes.

(i) Our constitution was framed and came into existence from 26^th January 1950.
(ii) That is why every year we observe this day as the Republic day.

(i) The symbol of rupees is Rs.
(ii) This was designed by D. Udhayakumar from Tamil Nadu in the year 2010.

The present needs of resources are met and the conserving of resources for the future are balanced, we call it sustainable development.

From the largest to the smallest, they are Asia, Africa, North America, South America, Antartica, Europe and Australia.

The feeling of oneness and unity among the people of various religions, castes of a country is called unity in diversity

(i) Go as a group and hunt the prey.
(ii) Dig a pit and trap the animals and hunt.

(i) Stone tools.
(ii) Excavated materials.
(iii) Rock paintings are the major sources of pre-history

ON THE BASIS OF DISTRIBUTION:
On the basis of distribution, resources can be classified into localized resources and universal resources.
(i) When resources are present in specific regions they are called localized resources.
(e.g.) Minerals.
(ii) Some resources are present everywhere Such resources are called universal resources.
(e.g.) Sunlight and air.
(ii) On National resources are resources within the political boundaries and oceanic area of a country.
(e.g.) Tropical forest regions of India.

Moderator: I welcome all of you for the debate on wearing helmet. First I call upon Mr. Mani to talk about the necessities of helmet.
Mani: Good Morning. Helmet wearing is very important for the motor cycle riders. It protects us from any head injury incase of accidents. Even the pillion riders also should wear helmet.
Moderator: Thank you. Now I call upon Mr. Rajesh to tell about the inconveniences of wearing the helmet.
Rajesh: Good Morning. Helmet is too heavy to wear. It increases the sweating. Some times we maynot hear the horn sounds behind.
Moderator: Thank you all. Though there are some inconveniences in wearing helmet we must wear helmet while driving. Ofcourse our life is more precious.

Prepare slogans, posters and placards to celebrate International Mountain Day.
(i) "Mountains are among the most beautiful land masses in the world."
(ii) "Mountains are beautiful as they rise up above the clouds and show just how grand the world can be."
(iii) "Great things are done when men and mountains meet."
(iv) "How glorious a greeting the Sun gives the mountains."
(v) "Mountains are earth's undecaying monuments."
(vi) "The mountains, forests and seas render men savage, they develop fierce, but yet do not destroy the human. "
(vii) "Men stumble over pebbles, never over mountains."
(viii) "Each fresh peak ascended teaches something."
(ix) "Mountains are the beginning and end of all natural scenery."
(x) "He who climbs upon the highest mountains laughs at all tragedies, real or imaginary.

Rotation:
(i) It is the spinning movement of the earth on its axis.
(ii) The rotation of the earth causes day and night.
(iii) As the earth is spherical in shape, only one half of it is illuminated by the sun at a time.
(iv) The other half remains dark.
(v) The illuminated portion of the earth experiences day, whereas the darkened part of the earth experiences night.
Revolution:
(i) It is the movement of the earth around the sun on its elliptical path.
(ii) The inclination of the earth on its axis and its revolution around the sun cause different seasons.