a.

pass through even non-magnetic materials.

b.

run from the north pole to the south pole.

c.

are in a state of tension and tend to be shorted.

d.

intersect one another

a.

0 °C

b.

4 °C

c.

37 °C

d.

273 °C

a.

Core is composed of electrons and protons

b.

The number of electrons is equal to that of neutrons

c.

Number of neutrons is equal to that of protons

d.

Number of protons is equal to that of electrons

a.

Diffusion

b.

Cohesion

c.

Viscosity

d.

Adhesion