| List I | List II | ||
|---|---|---|---|
| A | Rose | I | Twisted aestivation |
| B | Pea | II | Perigynous flower |
| C | Cotton | III | Drupe |
| D | Mango | IV | Marginal placentation |
To solve the problem of matching List I with List II, we need to understand each term in both lists. Here are the details:
Therefore, the correct matching is A-II, B-IV, C-I, D-III.
| List I | List II | ||
|---|---|---|---|
| A | Robert May | I | Species-Area relationship |
| B | Alexander von Humboldt | II | Long term ecosystem experiment using out door plots |
| C | Paul Ehrlich | III | Global species diversity at about 7 million |
| D | David Tilman | IV | Rivet popper hypothesis |
A sphere of radius R is cut from a larger solid sphere of radius 2R as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the Y-axis is : 
A constant voltage of 50 V is maintained between the points A and B of the circuit shown in the figure. The current through the branch CD of the circuit is :
The current passing through the battery in the given circuit, is: 