EVERYDAY SCIENCE

SCIENCE

ECOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which one of the following does provide the best estimate of world,s biological diversity? Of about ten million species Of about thirty million living probably alive today ,some 20 species some 50 are lost species are lost every day every day,most of them
A
Most of them unknown because no more than half a million have yet been actually identified by scientists
B
unknown because no more than one million have been actually identified
C
Of about forty-five million living species some 100 are lost every day most of them unknown because on more than 10 million have been actually identified
D
Of about seventy-five million living species some 500 are lost every day most of them unknown because no more than 3 million have been actually identified
Explanation: 

Detailed explanation-1: -Brazil. It is the country with the greatest biodiversity of flora and fauna on the planet. Brazil has the highest number of species of known mammals and freshwater fish, and more than 50, 000 species of trees and bushes, it takes first place in plant diversity.

Detailed explanation-2: -There is more solar energy available in the tropics, which contributes to higher productivity, this in turn might contribute indirectly to greater diversity.

Detailed explanation-3: -This variety can be observed at three levels; the genetic variabil-ity within a species, the variety of species within a community, and the organisation of species in an area into distinctive plant and animal com-munities constitutes ecosystem diversity.

Detailed explanation-4: -India displays significant biodiversity. One of seventeen megadiverse countries, it is home to 7.6% of all mammalian, 12.6% of all avian, 6.2% of all reptilian, 4.4% of all amphibian and 11.7% of all fish.

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