An atomic mass unit is defined as precisely 1/12 the mass of an atom of carbon-12.
the time required for the activity of a substance taken into the body to lose one half its initial effectiveness. Informal. a brief period during which something flourishes before dying out.
hope this helps ^^
The correct option is A.
Climate refers to the long time pattern of weather condition in a particular area. Climate is measured by assessing the patterns of variation in temperature, relative humidity, wind, atmospheric pressure, precipitation and other meteorological variables in a given area over a long period of time.<span />
The amount of atoms in each level and the positive and negative atoms in each level also
These are terms that we use in physics
