Question
Define distillation. What types of liquids (substances) can be separated by this process?
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List any two differences between infectious and noninfectious diseases. Write any one example of each disease.

Give three functions of blood.
Name the plant tissue which show the following features?
Give one example each in which a force does (a) positive work (b) negative work, and (c) zero work.
A heavy car A of mass 2000kg travelling at 10m/s has a head-on collision with a sports car B of mass 500kg. If both cars stop dead on colliding, what was the velocity of car B?