Question # 1

By opening the door of a refrigerator which is inside a room

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You can cool the room to a certain degree

You can cool the room to the temperature inside the refrigerator

You ultimately warm the room slightly

You an neither cool nor warm the room

One mile is equal to _______ kilometers

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1.725

1.108

1.609

1.475

An allergy is?

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Response form the immune system against antigens

Response of the body against cuts

A food thing

None of these

Which vitamin is known as thiamine?

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Vitamin B-1

Vitamin C

Vitamin A

Vitamin D

Which of the following would yo NOT find in a bacterial cell?

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Cell membrane

DNA

Golgi

Ribosomes

Which of the following disease are transmitted form one person to another?
1. Aids
2. cirrhosis
3. Hepatitis
4. Syphilis
Select the correct answer using the code given below?

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^{1,3,4 only}

1,2,3, and 4

1 and 2 only

2,3, and 4 only

Dynamo is a device that coverts:

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mechanical energy into electrical energy

Electrical energy into mechanical energy

Alternating current into direct energy

Heat energy into electrical energy

Biogas mainly contains

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Methane

Ethane

Hydrogen

CO

Who proposed the chemical evolution of life?

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Darwin

Lamarck

Oparin

Hetchel

Most of the communication satellites today are placed in a geostationary orbit, in order to stay over the same spot on the earth, a geostationary satellite has to be directly above the

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Equator

Tropic of Cancer

Either North or South Pole

Tropic of Capricorn

Lysosomes were discovered by

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Palade

Porter

Dedave

De vries

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