Suggest three measures to protect ourselves from lightning.

What are the measures one has to take to prevent from contracting STDs?

Tick T for true and F for false in the following statememnts: Lightning conductor cannot protect a building from lightning. (T/F)

Suggest any four measures to prevent sexually transmitted diseases.

Suggest three assisted reproductive technologies to overcome infertility.

In upper stratospher ozone protects us from

ATS inoculation protects our body from

Suggest any three assisted reproductive technologies to overcome infertility.

Lightning the thunder take place in the sky at the same time and at the same distance from us. Lightning is seen earlier and thunder is heard later. Can you explain why ?

[A] : Mimicry is a device adopted to protect the organism from its enemies [R] : It helps the animal in self defence and survival .

Suggest a suitable method to separate sugar and salt from an aqueous solution containing them.