List-I | List-II |
A. Biodiversity hotspot | I. Khasi and Jantia hills in Meghalaya |
B. Sacred groves | II. World Summit on Sustainable |
C. Johannesburg South Africa | III. Parthenium |
D. Alien species invasion | IV. Western Ghats |
A. Biodiversity hotspot: The Western Ghats is a recognized biodiversity hotspot. A-IV
B. Sacred groves: Sacred groves are forest fragments traditionally protected by local communities. They are often found in the Khasi and Jantia hills of Meghalaya. B-I
C. Johannesburg, South Africa: The World Summit on Sustainable Development 2002 was held in Johannesburg, South Africa. C-II
D. Alien species invasion: Parthenium (commonly known as congress grass) is an invasive alien species in India. D-III
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :