The plant produces a (great/large/huge) 'mass of' blossoms every spring. = The plant produces 'masses of' blossoms every spring.
The mayor is trying to encourage more commuters to use 'mass transit' in order to alleviate traffic in the city.
His policies are supported by 'the' (great/broad) 'mass of' the people. [=by most of the people]
(..) .. And here we stand, whiIe that demented maniac hurtIes... .. ...toward our President on our one and onIy mode of transportation... .. ...with Rita as prisoner, armed with machinery of mass destruction... .. ...with the simpIe intention of taking over the country. .. .. (..)1999 Wild Wild West