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Environmental Science

Environmental Science
In which year Silent Valley was declared as National Park?

1988
1984
1982
1981

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Environmental Science
African grasslands are called

Prairies
None
Pampas
Savannah

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Environmental Science
The relationship between nitrogen fixing bacteria and leguminous plants is an example for

Commensalism
Parasitism
Mutualism
Predation

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Environmental Science
Particulate pollutants are

all of these
are small solid particles and liquid droplets
are small solid particles released into the atmosphere
liquid droplets in atmosphere

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Environmental Science
Phytoplankton are

Omnivores
Consumers of Ocean
Producers of forest
Producers of lakes

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Environmental Science
The most important human activity, leading to the extinction of wildlife, is

Hunting for valuable wildlife products
Introduction of alien species
Alternation and destruction of the natural habitats
Pollution of wildlife, is

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