What is the structure of the following sentence?
while you were on vacation, i watered the plants.
simple
complex
compound
compound-complex

Writing about thing people usually do

Which of these can an adverbial clause modify?

Read the passage from an argumentative essay. many endangered species are currently threatened by climate change. there are some laws already in place, but are they effective enough? anyone with a conscience knows that these creatures deserve the chance to survive without outside threats impeding their survival. i suppose this is a tough decision for lawmakers, but i hope they choose wisely. which statement best evaluates the claim in the passage?