Topic: GK Important Topics
Chlorophyll Molecule: Central Magnesium Element
Which element is present in the centre of the Chlorophyll molecule?
DDT & Bird Eggshell Thinning: Calcium Metabolism
DDT causes egg shell thinning in birds because it interferes with:
Environmental Days & Dates Match
Match the Environment Day with the Date: List-I (Event) List-II (Date) A. World Environment Day 1. 16 September B. Earth Day 2. 5 June C. Ozone Day 3. 22 May D. Biodiversity Day 4. 22 April