Write T against true and F against false in the following statements.

(a) Like charges attract each other. (T/F)

(b) A charged glass rod attracts a charged plastic straw. (T/F)

(c) Lightning conductors cannot protect a building from lightning. (T/F)

(d) Earthquakes can be predicted in advance. (T/F)

Sometimes, a crackling sound is heard while taking off a sweater during winter. Explain.

Name the scale on which the destructive energy of an earthquake is measured. An earthquake measures 3 on this scale. Would it be recorded by a seismograph? Is it likely to cause much damage?

Suggest three measures to protect ourselves from lightning.