1. India-based Neutrino Observatory is included by the Planning Commission as a mega science project under the 11th Five-Year Plan. In this context, consider the following statements: 
1. Neutrinos are chargeless elementary particles that travel close to the speed of light.
2. Neutrinos are created, in nuclear reactions of beta decay.
3. Neutrinos have a negligible, but non-zero mass
4. Trillions of Neutrinos pass through human body every second.
Which of the statements given above are correct?