Questions

Neon is the element that is used in bright flashing advertising signs as Neon particulary gives bright color.

India does not have any lake or sea comparable with the Great Lakes of the united States or the Caspian Sea of the CIS.

The clotting of blood is a chain reaction initiated by the enzyme thrombokinase produced by the platelets. This causes prothrombin to be converted into thrombin in the presence of Ca++ion.

Thrombin combines with fibrinogen  to produce fibrin threads which entangles the corpuscles to form the clot.

In the periodic table, the atomic radius increases from top to bottom in the groups and it increases from right to left in the periods.

Francium is the atom with largest atomic radius. Helium is the atom with smallest radius.