Which statement correct about centre of origin of plant : -

Q. Which statement is correct about the centre of origin of plants?

Q. Choose the correct statements about the plant diversity of India.

Q. Which of the following statements are correct?

I. Plants have greater species diversity than animals
II. Around 3,00,000 plant species are yet to be discovered in India
III. The species diversity shown by algae is more than that of lichens
IV. There are more existing species of birds as compared to that of mammals

Q. The species diversity of plants on earth is not more than ______ of the total.

Q.

Q6 which of the following are the main effects caused by eutrophication?

i) Species diversity decreases and the dominant biota changes.

ii) Plant and animal biomass increases.

iii) Turbidity decreases.

iv) Rate of sedimentation increases, shortening the lifespan of the lake

Which of the above statements is/are correct?