2. Presence of which salts in water causes 'Blue Baby Syndrome'?
3. Sun eclipse occurs at which of the following phases of the moon?
[D]Either Full Moon or New Moon
4. If earth stops rotating, the impact on weight of a body will be minimum on __________________________.
[C]Tropic of Cancer
[D]Tropic of Capricorn
5. Which organ open in small intestine through Pylorous?