Question # 1

Which part of plant respires?

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Root

Leaf

Seed

All of these

Which two gentlemen accidentally discovered cosmic radiation in 1965?

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Arno Penzias and Robert Wilson

Alan Guth and Denid Overbye

Robert Dicke and geroge gamow

Georges Lemaitre and Bell Holmdel

Which fo the following is used as laughing gas?

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Nitrogen trioxide

Nitrogen dioxide

Nitrous oxide

Nitrogen tetra oxide

Two vessels contain milk and water mixed respectively in the ratio 3:1 and 5:3. Find the ratio in which these two are to be mixed to get an new mixture in which the ratio of milk to water is 2:1.

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4:1

1:2

3:1

2:1

Which instrument is used for cutting an object into thin parts for microscopic inspection?

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Microphone

Microscope

Microtome

Micrometer

Which device is used to measure radioactivity?

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infrared Pedometers

Barometer

Geiger-Muller tube

Eratosthenes

Many plants join up to from forests and forest help us in may ways, Pick out the major use(s) of forests form the following.

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They provide food

They provide wood

Both of these

Neither of these

Which of the following is the chemical name of the salt we use on our Kitchen?

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Sodium Chloride

Ammonium Sulphate

Sodium carbonate

Calcium chloride

What herb is said to help with vomiting?

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Oregano

Clove

Peppermint

Ginger

Which his gas is used with helium in making gas lasers, but is no doubt better known for its use in lighting.

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Neon

Argon

Fluorine

Nitrogen

Horticulture is the study of garden cultivation what is sericulture:

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Study of flowers yielding plants

study of female reproductive organ

Teaching by pictures and models

silks industry (culture of silk)

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