Question # 1

Per rubber plant, annual rubber production is about:

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20 pounds

4-5 pounds

50 pounds

Very small amount

Natural rubber's plant matures for rubber production:

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At the age of 5 years

At the age of 10 years

At the age of 3 years

At the age of 15 years

Natural rubber plant remain productive:

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For 10 years

For 20 years

For 40 years

For 25 years

Hevea brasiliensis's smuggled rubber seeds from Brazil were propagated in London's:

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Kew Gardens

LawrenceGardens

WahGardens

MayoGardens

In 1823, Charles Macintosh established a rubber plant:

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For manufactured water-proof cloth

For manufactured tyre & tube

For manufactured rubber balls

For manufactured rubber goods

At present, Brazil produce world's only:

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10 percent rubber

20 percent rubber

One percent rubber

30 percent rubber

Most of natural rubber production in the world is being used:

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For manufacturing water-proof cloth

For manufacturing tyre & tube

For manufacturing toys

For manufacturing utensils

For best vegetative growth of natural rubber plant:

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There is not any need of rainfall

Small amount of rainfall is enough

70-100 inches rainfall is needed

Only 30 inches rain-fall is enough

Hevea brasiliensis plant provide world's

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50 percent natural rubber

90 percent natural rubber

One-third natural rubber

Small amount of natural rubber

At present, world's 80 percent natural rubber is produced in:

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South-east Asia

Sri Lanka

Brazil

African countries

Hevea brasiliensis's smuggled rubber seeds from Brazil were propagated in London' s:

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Kew Gardens

Lawrence Gardens

Wah Gardends

Mayo Gardens

In 1839 A.D., Charles Goodyear from rubber prepared:

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Tyre and tube

Vulcanized rubber

Erasing rubber

Rubber goods

The continent of Asia produces world's:

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91.5 percent rubber

50percent rubber

Only 20 percent rubber

25percent rubber

In the beginning Natural rubber plant was discovered:

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In the Amazon river basin

In the Ganges river basin

In the Mississippi river basin

In the Congo river basin

In one year, for how many days, rubber plant producer rubber ?

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100 days

50 days

200-300 days

throughout the year

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