Q:

The United Nations declared 1990's-2000 as the International Decade for

A) Water for Life Decade	B) Bone and Joint Decade
C) Second International Decade for the Eradication of colonialism	D) International Decade for Natural Disaster Rreduction

Answer & Explanation Answer: D) International Decade for Natural Disaster Rreduction

Explanation:

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Filed Under: Important Days and Years

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Q:

What measures Air pressure?

A) Barkometer	B) Bolometer
C) Spectrometer	D) Barometer

Answer & Explanation Answer: D) Barometer

Explanation:

Air Pressure can be defined as the pressure of air in the earth's atmosphere. It reaches a maximum of about 100,000 Pa near sea level and decreases as altitude increases.

The barometer is an instrument which is used for measuring Air pressure.

Physics instruments and their uses:

Barkometer - - - Tanning liquors used in tanning leather

Bolometer - - - Electromagnetic radiation

Spectrometer - - - Properties of light.

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Filed Under: Physics
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3 2481

Q:

Valley of the Kings is located in which country?

A) Tanzania	B) Italy
C) Egypt	D) Turkey

Answer & Explanation Answer: C) Egypt

Explanation:

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Filed Under: Famous Places

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Q:

Which is the official language of Bank of Central African States

A) English	B) Hindi
C) German	D) French

Answer & Explanation Answer: D) French

Explanation:

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Filed Under: World Organisations

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Q:

Which African countries are the members of the East African Development Bank

A) Kenya	B) Tanzania
C) Uganda	D) All the above

Answer & Explanation Answer: D) All the above

Explanation:

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Filed Under: World Organisations

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Q:

Which of the following elements is a metalloid?

A) arsenic	B) boron
C) antimony	D) All of the above

Answer & Explanation Answer: D) All of the above

Explanation:

A metalloid is any chemical element which has properties in between those of metals and nonmetals, or that has a mixture of them.

The six commonly recognised metalloids are

boron,

silicon,

germanium,

arsenic,

antimony, and

tellurium.

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Filed Under: Chemistry
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Q:

Which structure is common to plant and animal cells?

A) Centriole	B) Chloroplast
C) Central Vacuole	D) Mitochondria

Answer & Explanation Answer: D) Mitochondria

Explanation:

Mitochondria are present in both plant and animal cells.

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Filed Under: Biology
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Q:

Energy produced in nuclear reaction is given by

A) Charle's law	B) Grahm's law
C) Gay - Lussac's law	D) Einstein's law

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