Question # 1

who inventor the gas mantle?

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wellsbach

spenser

berliner

colt

Saturn's atmosphere is mostly:

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Sulfur and Hydrogen

Nitrogen and Oxygen

Hydrogen and Helium

Hydrogen and Nitrogen

Short-sightedness is due to the:

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Shifting of the iris

Elongation of eyeball

Weakening of retina

Weaker muscles

The greatest deposits of loess are found in--

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New Zealand

Central Europe

China

Argentina

What is the largest salt water lake in the world by area?

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Lake Superior

Lake Tahoe

Lake Baikal

Caspian Sea

The Panama Canal links North America with South America. Which of the following oceans are connected by Panama Canal?

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Pacific and Atlantic Ocean

Atlantic and Indian Ocean

Indian Ocean and Pacific

Atlantic and North Ocean

Which is the smallest gland in human body?

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Liver

Thyroid

Pituitary

Salivary Glands

Khmer is the official language of which country?

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Laos

Cambodia

Vietnam

Thailand

Amino acids are the building blocks of:

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Vitamins

Starch

Proteins

Lipids

Which sea lies within the Philippines?

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Timor Sea

Coral Sea

Sibuyan Sea

Arafura Sea

Which of these four geographical lines runs through the most countries?

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Prime Meridian

Tropic of Carpricorn

Equator

Tropic of Cancer

The weight of an average human male brain is about:

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1 kg

1200 gm

1350 gm

1500 gm

Who suggested that most of the atom is located in the nucleus?

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Bohr

Rutherford

Thompson

None of these

Which of the following vitamins is considered helpful to keep the eyes healthy?

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Vitamin C

Vitamin A

Vitamin B

Vitamin D

This desert can be found in northern China and Mongolia?

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Taklimakan

Atacama

Victoria

Gobi

Atom bomb is based on the principle of:

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Nuclear fusion

Nuclear fission

Both (a) and (b)

None of these

Seeds can best be preserved in:

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Hot and dry condition

Cool and dry condition

Hot and wet condition

Cool and wet condition

Hydrometer is the device that measures:

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The acidity of water

The specific gravity of a liquid

The gravity of milk

None of these

What is Mercury in our solar system?

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The smallest planet

The fastest planet

The planet nearest to Sun

All of these

Which of the following clouds is made up of tiny ice particles?

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Cumulus clouds

Cirrus clouds

Stratus clouds

None of these

Comets are celestial bodies moving around the solar system in:

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Elliptical or hyperbolical orbits,usually accompanied by a shinning tail

Elliptical orbits usually accompanied by a long shinning tail

Hyperbolic orbit always accompanied by a shinning head

Hyperbolic orbit without projecting tail

The earth rotates around its axis from:

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North to South

East to West

West to East

North to East

name the discoverer of chlorine.

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freud

dohl

fermi

scheele

How many millimetres constitute one centimetre?

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10 millimetres

15 milliemetres

12 millimetres

20 millimetres

Which of the following is essential for blood clotting?

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RBC

WBC

Blood platelets

Lymph

Which is the longest of the following lines?

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0° Meridian

45° E

90° W

All are equal

A microscopic organism playing a vital role in nitrogen cycle is:

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Virus

Bacteria

Protozoa

Red algae

Detergents used for cleaning clothes and utensils contain:

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Nitrates

Sulphates

Sulphonates

Bismuthinites

Which one of the following countries has the highest agricultural production in Europe?

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France

Switzerland

Denmark

Germany

Mercurys year is how many Earth's days?

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59

88

365

28

Allergy is caused due to:

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Inflammation of upper respiratory tract

Antigen-antibody reaction

Introduction of external material into body

None of these

A heart beat requires approximately:

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0.8 second

20 seconds

1 minute

50 seconds

Rusting of iron involves:

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Reduction

Oxidation

Decomposition

Displacement

The most important ore of aluminium is:

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Calcite

Bauxite

Calamine

Galena

What is measured by metre per second?

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Acceleration

Velocity

Speed

Aeroplane's speed

Insulin is secreted in:

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Pituitary

Pancreas

Liver

Parathyroid

Asia Minor consists of which country?

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India

Turkey

Vietnam

Sri Lanka

what Chadwick discovered?

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ozone

neutron

pascal

davis

Oozes are associated with:

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Volcanic deposits

Terrigenous deposits

Pelagic deposits

Coral reefs

Greenwich Mean Time is the local time of:

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180 degree longitude

80 degree west longitude

0 degree longitude

80 degree East longitude

Which of the following plays an important part in photosynthesis?

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Chloroplast

Centrosome

Tonoplast

Nematoblast

Which cloud is known as high cloud?

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Cirrus

Stratus

Nimbus

Cumulus

Animals which eat both plants and other animals are known as what?

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Omnivores

Herbivores

Carnivores

None of these

Year is longest on:

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Mercury

Earth

Jupiter

None of these

Solar system was discovered by:

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Kepler

Galileo

Copernicus

Plato

Which of the following is not a neutral oxide?

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Sulphur dioxide

Water

Nitric oxide

Nitrous oxide