Which noun refers to a gradual increase?

Which adverb describes something that is affecting something in a negative manner?

Which adjective means caused by?

Which adjective describes something possible to imagine or to think?

Which noun refers to a disagreement resulting from opposing arguments?

Which verb means to limit?

Which noun describes the system of relationships between all living things within an environment?

Which noun refers to a building made of glass and used for growing plants?

Which adjective describes something fueled with more than one source?

Which noun refers to the establishment of rules or laws that must be obeyed?

Which verb means to encourage or persuade someone to do something?

Which noun refers to a place where garbage is buried?

Which noun refers to a reduction in how harmful or unpleasant something can be?

Which verb means to cause a problem or a difficulty?

Which noun refers to a formal set of official rules?

Which noun refers to a person who doubts the truth or value of an idea?

Which adjective describes something buried below water?

Which adjective describes something large enough to be important?

Which adjective describes something able to be defended?

Which noun refers to a point at which something starts?

Which adjective describes something without weakening in strength or force?

Which adjective describes something so obviously true that it cannot be doubted?

Which adjective describes something clear and firm?

Which adjective describes something that has never happened or existed before?