a.

Solid particles are less orderly than those of a liquid

b.

Solids have lower densities than liquids

c.

Solids particles have greater kinetic energies than those of liquids

d.

Solid particles cannot be easily compressed

a.

Air pollution

b.

Flooding

c.

Increasing humidity

d.

Water pollution

a.

Chlorine

b.

Hydrogen peroxide

c.

Sulphur

d.

Tetraoxosuplhate(VI)acid

a.

Made the cathode

b.

Made the anode

c.

Used with a metal of lower electropositive potential

d.

Initially coated with tin