Questions

The halogens make up group 17 in the periodic table.

They are five elements:

Chlorine (Cl)

Fluorine (F)

Bromine (B)

Iodine (I)

Astatine (At).

But astatine is not purely halogen as it is radioactive.

Hair grows everywhere on the skin except palms, sole of feet and lips on the human body. Hair is modified type of skin.

A simile is a figure of speech in which two different things are compared using like or as words.

Here in the given sentence, Foam brightens like the dogwood foam's brightness is compared to dogwood. Hence, it is a simile.

Egypt

The data bus is Bi-directional because the same bus is used for transfer of data between Micro Processor and momory of input / output devices in both the direction.

It is when themes of keywords are matched by AdWords to relevant content on various websites that run Google ads.

Bhaag Milkha Bhaag

silver is the best conductor of electricity.

When compared to remaining 3 metals, as Silver having more number of free electrons in its valency shell it is the good conductor of electricity.

Conductors Thermal Conductivity @ 25degree C

Silver --- 429
Copper --- 401
Gold --- 310
Aluminium --- 250