Answer:
18
Explanation:
The s-, p-, and d-block elements of the periodic table are arranged into 18 numbered columns, or groups.
This force on compass dials is an example of a force that acts at a distance.
Explanation:
1 mega Hertz = 1000000 hertz
Ramsar has the highest level of natural radiation in the world.
Hot springs located in the Arkaroola Wilderness Sanctuary in Southern Australia are also credited with higher than normal radiation levels, due to spring water coming in contact with rocks rich in uranium and radon.
Explanation:
Latent heat of evaporation is the heat required to change water to vapor at the same temperature boiling temperature.(100°C)
That water turns into vapor when heated at temperature more than 100°C without any increase in temperature.
that is latent heat of vaporization Q = mL
