1. The use of antibiotics is a very useful way of killing disease causing bacteria. Sometimes people don't finish all of their pills. This can result in

2. How many calories should you eat per day to lose weight

3. Rotation of earth 🌎 is from

4. How is dengue fever transmitted

5. Collection of water droplets which are suspended in air are called

6. Astronomical unit of light is used to measure

7. Cyclones:

8. The sky is blue because of

9. Proteins are made up of

10. Layer of atmosphere in which ozone layer lies is

11. Rainbow formation is due to

12. The principle used in radar is the same as that of sonar's. In radar we use radio waves whereas in sonar we use

13. Which distance is bigger, an astronomical unit (AU) or a light year?