A sudden, drastic flow of snow down a slope due to the load of new snow or rain, snowmobilers, explosives or backcountry skiers, overload the snow pack. It is also called snow slide or snow slip.

Derived from Latin, meaning "equal night" .On equinox night and day are nearly the same length i.e. 12 hours, all over the world, because Earth's axis neither tilts away from nor towards the Sun .

Also known as Oceanus Procellarum ,is a vast lunar mare on the western edge of the Moon, formed by ancient basaltic flood ,volcanic eruptions that covered the region in a thick, nearly flat layer of solidified magma. Unlike the other lunar maria, however, Oceanus Procellarum is not contained within a single well-defined impact basin . Around its edges lie many minor bays and seas.

Time between dawn and sunrise or between sunset and dusk, during which sunlight scattering in the upper atmosphere illuminates the lower atmosphere, and the surface of the earth is neither completely lit nor completely dark. The sun itself is not directly visible because it is below the horizon.

An imaginary point directly above or in the vertical direction opposite to the gravitational force at a particular location, on the imaginary celestial sphere.
The zenith is used in the following scientific contexts:

1.It is the direction of reference for measuring the zenith angle, the angle between a direction of interest (e.g., a star) and the local zenith.
2.It defines one of the axes of the horizontal coordinate system in astronomy.

A ruling body composed of the best citizens .It is a form of government in which supreme power is in the hands of an "upper class" known as aristocrats or a government when only a certain part of the general public can represent the public.

Issued on November 2, 1917, in a letter from Arthur James Balfour, British Foreign Secretary, to Lord Rothschild, president of the British Zionist Federation .In it the British made public their support of a Jewish homeland in Palestine. It was 67-word statement contained within a brief letter. The declaration recognized the establishment of a Jewish homeland in Palestine. Great Britain, particularly, favored the declaration as an act of policy. She wanted the United States to join World War I and the she hoped that by supporting a Jewish homeland in Palestine, world Jewry would be able to sway the U.S. to join the war. It statement read as follows:-

"His Majesty's Government view with favour the establishment in Palestine of a national home for the Jewish people, and will use their best endeavours to facilitate the achievement of this object, it being clearly understood that nothing shall be done which may prejudice the civil and religious rights of existing non-Jewish communities in Palestine, or the rights and political status enjoyed by Jews in any other country."

An alliance or a group of people or nations with shared goals or permanent union of political units, for common action in relation to other units. Then it tend to be established for dealing with critical issues such as defense, foreign affairs or a common currency, with the central government being required to provide support for all members.

Transfer of an accused from one nation or state to another nation or state. Between states, extradition is regulated by treaties and compelled by laws. Extradition Act, 1972, deals to the extradition of fugitive offenders in Pakistan.

(j). Inquest

A judicial inquiry in common law jurisdictions, particularly held to determine the cause of a person's death, conducted by a judge, jury, or government official. An inquest may or may not require an autopsy carried out by a coroner or medical examiner. Generally, inquests are only conducted upon deaths which are suspicious, due to violence, involving law enforcement officials, or of persons held in state custody.

The point where no more heat can be removed from a system, or entropy reaches its minimum value .absolute zero is defined as 0K on the Kelvin scale and as −273.15° on the Celsius scale equals to −459.67° on the Fahrenheit scale.

Is the tendency to expect the worst and see the worst in all things.it is a state of mind in which one perceives life negatively.

A nation situated in between two separate powers. In general, the buffer state acts as an independent country unassociated with the rival nations or empires. This nation provides a cushion that prevents belligerent actions from occurring. This differs from a satellite state in that the nation generally holds a neutralist foreign policy, creating a buffer zone rather than a position for the hostile powers to hedge military and economic objectives.

Answer:-Nails are made of a tough protein called keratin and are produced from living skin cells in the fingers and toes. But they do not have nerve endings and pain receptors like the rest of our body. So the pain sensation does not reach our brain and we do not feel pain when they are cut.

Answer:-In summer due to high temperature the length of pendulum increases so that it's time period also increases, hence clocks loses time in summer.

Answer:-A siphon works due to the atmospheric pressure and force of cohesion among the water molecules, so it does not works in vacuum.

Answer:-the water vaporous present in air get cooled and appear as droplets of water on coming in contact with the cold surface of the glass tumbler.

Answer:-It is defined as "the branch of mechanics that deals with the motion of gases especially air and their effects on bodies in the flow." It includes the effects of pressure and air resistance. It is used often for airplanes and rockets, but also for automobiles, where reducing the air friction can improve performance and fuel efficiency.

Answer:-Because at night Earth radiate infra-red radiation (heat) back into space. When there is cloud cover, the clouds act like a blanket. It prevent much of the warm air from leaving the atmosphere and trap the heat close to the ground just like a blanket traps heat close to our body.

Answer:-Rainwater is soft water because content calcium or magnesium or iron ions are not dissolved in it and its purified water while river water contains a large amount of minerals, particularly calcium, magnesium, and irons that makes it hard.

Answer: - All materials expand when heated and contract when cooled, small space is left to allow room for the rails to expand due to the rise in atmospheric temperature as well as the friction caused by running of train. The expansion due to heating is significant, and unless space is provided for expansion of rails, the rails will bend to accommodate the increased length. This will make the railway unfit for running of trains.

Answer:-The Earth orbits, on average, 93 million miles (149,600,000 km) from the Sun (this distance is defined as one Astronomical Unit (AU)), taking one year to complete an orbit. The Earth revolves around the Sun at a speed of about 18.5 miles/sec (30 km/sec).

Answer:-Mirage is an illusion observed in deserts or on roads in summer season where inverted images of distant objects are formed as there would have been water in the desert or on the road. This phenomenon is due to total internal reflection of light and refraction of light.

Answer:-Human body contains approximately 6 quarts (or 5.6 liters) of blood.

English poet best known for The Faerie Queene

English dramatist, poet and translator of the Elizabethan

Poem by the English poet John Milton, published in 1671.

English author poet, essayist, moralist, literary critic, biographer, editor and lexicographer.

Narrative poem in four parts written by Lord Byron

Russian and Soviet author, a founder of the Socialist Realism literary method and a political activist

Collection of stories written in Middle English by Geoffrey Chaucer at the end of the 14th century.

President of Venezuela

American statesman

Turkish economist and politician. She was Turkey's first and only female Prime Minister.

American tennis player and former world no.1

Seventh Prime Minister of Pakistan.

Former Governor of the State Bank of Pakistan .




African National Congress, Anti Narcotic Committee

Airborne Warning And Control System

Baluchistan Chamber Of Commerce And Industry

Central Board Of Revenue

Asia Pacific Economic Cooperation

Council Of Pakistan Newspapers Editors

T Comprehensive Test Ban Treaty

General Agreement On Tariffs And Trade

Gulf Co-Operation Council, Global Cricket Council

Memorandum of Understanding

National University of Science And Technology

Pakistan National Shipping Corporation

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