A rate rate is universally known as a synonym very good rate. For exmaple if someone were to say "We now connect at a very rate rate." it would be the same as saying "We now connect at a very good...
respiratory
The polarity of solute and solvent, the concentration, the temperature.
Rate of change of distance is called speed.Rate is defined as change with respect to time.
Discounting any emigration/immigration, growth rate is birth rate minus death rate.