Questions

Controlled railroad crossing includes warning signs, red lights and railway gates, whereas absence of all of these warning signs like red lights and gates includes uncontrolled railroad crossings. 

The Mula-Mutha is a river in India, formed by the confluence of the Mula and Mutha rivers in the city of Pune, which later meets the Bhima River, which itself later meets the Krishna River and finally emptying to the Bay of Bengal.

• Shivanasamudra is a famous waterfall situated in Mandya District of Karnataka State. 
• Gaganachukki and Barachukki Falls are collectively called as Shivanasamudra Falls.

Internet is not an operating system.

Yes, when rain starts falling umbrella goes up for pretecting us from wetting.