Science

2. When light falls on a surface and gets back into the same median.
4. A spherical mirror who's reflecting surface is curved inwards.
9. All the process which together keep the living organisms alive and performs task to maintain the body.
11. The process of taking nutrients from food.
13. The process in which the cells of an organisms obtain energy by combining oxygen and glucose.
14. Those reaction in which a compound splits up into tow or more simpler substances.
15. A reaction in in which energy is absorbed from the surroundings.
17. It filters the blood and remove wastes from our body.
18. It is a process in which food materials get spoiled due to oxidation.

1. It is yellow color fluid and it transport food, carbon dioxide and waste products.
3. The matabolic activity in the body generates many kinds of waste and in this process wastes are removed from the body.
5. A spherical mirror who's reflecting surface is curved outwards.
6. The diameter of the reflecting surface of a spherical mirror.
7. Those reactions in which two or more substance combined to form a single substance.
8. The distance between pole and principal focus.
10. A process in which metals are eaten up up gradually by the action of air, moisture and acid on their surface.
12. Those reactions in which one element takes the place of another in a compound.
16. A straight line which is passes through the pole and center of curvature.