Crossword puzzle clue "more level"

Low-level pollution or high-level protection

Warning sign at a train station's food court? (NOTE: The original sign, without my additions, actually exists. It's in Grand Central Terminal in NYC, on the lower level — the food court level. The sig

Class, level or class level

Management level or theater level

Give more, more, more

More level

Capital situated more than two miles above sea level

Capital more than two miles above sea level