What effect would a drier climate have in a swamp environment

Well honestly there is a lot, but i will only list a few first the animals in that habitat will sort of die off and be able to live because their habitat was drying out.. especially their food and water source is evaporating for disintegration I hope that this helped :) :) :).

Many things, the plants would die due to sudden change, animals could die, and the environment would change.

The answer is true for your question.

True, the standard unit for volume is liters which can be represented by either a lower case "l" or a capital "l"