Question # 1

U.S.A consume world's:

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50 percent natural rubber

25percent natural rubber

70percent natural rubber

80percent natural rubber

For rubber plantation, trees and planted apart:

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One meter

5 meters

10 meters

20 meters

Native country of Hevea brasiliensis plant is:

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Nigeria

Congo

Brazil

Zambia

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

Most of the 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

When did regular rubber export started from South America-Brazil?

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1750 A.D

1852 A.D

1857 A.D

1900 A.D

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

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

From experimental rubber plantation of on hectare:

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3,335 kg rubber production is possible

1000kg rubber production is possible

500kg rubber production is possible

5000kg rubber production is possible

For propagation of rubber plant:

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Equatorial warm-humid climate is suitable

Desert climate is suitable

Monsoon climate is suitable

Sudani climate is suitable

Indonesia ranks in rubber production in the world:

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At fifth position

At 10th position

At 2nd position

At 20th position

At first British established rubber plantations in:

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Ceylon (Sri Lanka)

Maldives

Indaman Islands

Malaysia

The continent of Africa produces world's:

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6 percent rubber

20percent rubber

50percent rubber

10percent rubber

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

For best propagation of natural rubber plant:

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80°F(27°C) temperature is best suitable

100°F temperature is suitable

50°F temperature is suitable

32°F temperature is suitable

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